diff --git a/.playground/components/DocContentBlock.vue b/.playground/components/DocContentBlock.vue
new file mode 100644
index 0000000..994db60
--- /dev/null
+++ b/.playground/components/DocContentBlock.vue
@@ -0,0 +1,29 @@
+<script lang="ts" setup>
+defineProps({
+  title: {
+    type: String,
+    required: false,
+  },
+  description: {
+    type: String,
+    required: false,
+  },
+  accentTitle: {
+    type: Boolean,
+    default: false,
+  },
+  padTop: {
+    type: Boolean,
+    default: false,
+  },
+})
+</script>
+
+<template>
+  <div>
+    <h1 v-if="title" class="font-medium" :class="{ 'mt-8': padTop, 'text-primary text-2xl font-medium': accentTitle, 'text-xl font-normal': !accentTitle }">{{ title }}</h1>
+    <p v-if="description" class="text-sm text-justify">{{ description }}</p>
+  </div>
+</template>
+
+<style scoped></style>
diff --git a/.playground/components/DocExampleBlock.vue b/.playground/components/DocExampleBlock.vue
new file mode 100644
index 0000000..302286e
--- /dev/null
+++ b/.playground/components/DocExampleBlock.vue
@@ -0,0 +1,81 @@
+<script lang="ts" setup>
+import FileTypeVue from "./icon/VscodeIconsFileTypeVue.vue"
+import FileTypeTypescript from "./icon/VscodeIconsFileTypeTypescriptOfficial.vue"
+import FileTypeJavascript from "./icon/VscodeIconsFileTypeJsOfficial.vue"
+import TablerTerminal from "./icon/TablerTerminal.vue";
+
+const slots = defineSlots<{
+  default?: () => VNode[];
+  code?: () => VNode[];
+}>();
+
+const IconComponents = {
+  'vue': FileTypeVue,
+  'vue-html': FileTypeVue,
+  'sh': TablerTerminal,
+  'ts': FileTypeTypescript,
+  'js': FileTypeJavascript,
+}
+
+const codeSlotContent = computed(() => {
+  if (slots.code) {
+    const slotContent = slots.code();
+    let contentLines = slotContent
+      .map(vnode => vnode.children || '')
+      .join('')
+      .replace('\n', '') // remove first line break
+      .split('\n');
+
+    // calculate the minimum indent
+    const minIndent = contentLines.reduce((min, line) => {
+      const match = line.match(/^(\s*)\S/);
+      if (match) {
+        return Math.min(min, match[1].length);
+      }
+      return min;
+    }, Infinity);
+
+    // remove the minimum indent from each line
+    const stringContent = contentLines.map(line => line.slice(minIndent)).join('\n');
+    
+    return stringContent;
+  }
+  return '';
+})
+
+defineProps({
+  filename: {
+    type: String,
+    default: '',
+  },
+  lang: {
+    type: String as PropType<keyof typeof IconComponents>,
+    default: '',
+  },
+})
+</script>
+
+<template>
+  <div class="border border-neutral-200 dark:border-neutral-700 rounded-lg">
+    <div v-if="filename" class="p-4 py-2 border-b border-neutral-200 dark:border-neutral-700">
+      <span class="flex items-center gap-1">
+        <component v-if="lang" :is="IconComponents[lang]" class="inline" />
+        <span class="text-sm text-neutral-500 dark:text-neutral-400">{{ filename }}</span>
+      </span>
+    </div>
+
+    <template v-if="slots.default">
+      <div :class="['p-4 overflow-auto', $slots.code ? 'border-b border-neutral-200 dark:border-neutral-700' : '']">
+        <slot></slot>
+      </div>
+    </template>
+
+    <template v-if="slots.code">
+      <div class="p-4 overflow-auto">
+        <Shiki class="text-sm" :lang="lang" :code="codeSlotContent" />
+      </div>
+    </template>
+  </div>
+</template>
+
+<style scoped></style>
diff --git a/.playground/components/TitleBar.vue b/.playground/components/TitleBar.vue
index 5bd2b6a..3888515 100644
--- a/.playground/components/TitleBar.vue
+++ b/.playground/components/TitleBar.vue
@@ -1,5 +1,6 @@
 <script lang="ts" setup>
-
+// const appConfig = useAppConfig();
+// appConfig.rayui.primary = 'red';
 </script>
 
 <template>
@@ -8,8 +9,13 @@
       <h1 class="font-medium text-xl">RayineSoft<sup class="text-sm"> &copy;</sup></h1>
       <h2 class="font-normal text-xs">Common Components</h2>
     </div>
+    <div class="flex items-center gap-4">
+      <NuxtLink to="/" class="text-neutral-400 dark:text-neutral-500"
+        active-class="!text-neutral-700 dark:!text-neutral-300">Docs</NuxtLink>
+      <NuxtLink to="/installation" class="text-neutral-400 dark:text-neutral-500"
+        active-class="!text-neutral-700 dark:!text-neutral-300">Installation</NuxtLink>
+    </div>
   </header>
 </template>
 
-<style scoped>
-</style>
+<style scoped></style>
diff --git a/.playground/components/icon/TablerTerminal.vue b/.playground/components/icon/TablerTerminal.vue
new file mode 100644
index 0000000..45d449d
--- /dev/null
+++ b/.playground/components/icon/TablerTerminal.vue
@@ -0,0 +1,10 @@
+
+<template>
+  <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m5 7l5 5l-5 5m7 2h7"></path></svg>
+</template>
+
+<script>
+export default {
+  name: 'TablerTerminal'
+}
+</script>
\ No newline at end of file
diff --git a/.playground/layouts/default.vue b/.playground/layouts/default.vue
index 388dfe4..32e801f 100644
--- a/.playground/layouts/default.vue
+++ b/.playground/layouts/default.vue
@@ -1,5 +1,7 @@
 <script lang="ts" setup>
-
+useSeoMeta({
+  title: 'RayineSoft Common Components'
+})
 </script>
 
 <template>
@@ -16,10 +18,16 @@ body {
   @apply bg-white dark:bg-neutral-900 text-neutral-900 dark:text-neutral-100;
 }
 
+.shiki,
+.shiki span {
+  background-color: rgba(0, 0, 0, 0) !important;
+}
+
 @media (prefers-color-scheme: dark) {
 
   .shiki,
-  .shiki span {
+  .shiki span,
+  code.shiki {
     color: var(--shiki-dark) !important;
     background-color: rgba(0, 0, 0, 0) !important;
     font-style: var(--shiki-dark-font-style) !important;
diff --git a/.playground/nuxt.config.ts b/.playground/nuxt.config.ts
index 05ca60e..55c8b4e 100644
--- a/.playground/nuxt.config.ts
+++ b/.playground/nuxt.config.ts
@@ -31,12 +31,18 @@ export default defineNuxtConfig({
       "yaml",
       "vue",
       "vue-html",
+      "sh",
+    ],
+    bundledThemes: [
+      "light-plus",
+      "dark-plus",
+      "material-theme",
+      "material-theme-lighter",
     ],
-    bundledThemes: ["light-plus", "dark-plus"],
     highlightOptions: {
       themes: {
-        light: "light-plus",
-        dark: "dark-plus",
+        light: "material-theme-lighter",
+        dark: "material-theme",
       },
     },
   },
diff --git a/.playground/pages/index.vue b/.playground/pages/index.vue
index ec77dcb..f7e975c 100644
--- a/.playground/pages/index.vue
+++ b/.playground/pages/index.vue
@@ -3,56 +3,115 @@ const message = useMessage();
 </script>
 
 <template>
-  <div class="flex flex-col items-start gap-12">
+  <div class="flex flex-col items-start gap-16 pb-20">
+    <section>
+      <DocContentBlock title="Button" accent-title />
 
-    <div class="w-full flex flex-col gap-4">
-      <div>
-        <h1 class="font-medium text-xl text-indigo-400">Message</h1>
-        <p class="text-sm">Message component like a toast</p>
-      </div>
+      <DocContentBlock title="Variants" />
+      <DocExampleBlock lang="vue-html">
+        <div class="flex items-center gap-2">
+          <RayButton>Solid</RayButton>
+          <RayButton variant="outline">Outline</RayButton>
+          <RayButton variant="soft">Soft</RayButton>
+          <RayButton variant="ghost">Ghost</RayButton>
+          <RayButton variant="link">Link</RayButton>
+        </div>
+        <template #code>
+          {{ `
+          <template>
+            <RayButton>Solid</RayButton>
+            <RayButton variant="outline">Outline</RayButton>
+            <RayButton variant="soft">Soft</RayButton>
+            <RayButton variant="ghost">Ghost</RayButton>
+            <RayButton variant="link">Link</RayButton>
+          </template>` }}
+        </template>
+      </DocExampleBlock>
 
-      <div class="border border-neutral-200 dark:border-neutral-700 rounded-lg">
-        <div class="p-4 py-2 border-b border-neutral-200 dark:border-neutral-700">
-          <span class="flex items-center gap-1">
-            <IconVscodeIconsFileTypeVue class="inline" />
-            <span class="text-sm text-neutral-500 dark:text-neutral-400">app.vue</span>
-          </span>
+      <DocContentBlock title="Colors" />
+      <DocExampleBlock lang="vue-html">
+        <div class="flex items-center gap-2">
+          <RayButton color="amber">amber</RayButton>
+          <RayButton color="violet" variant="outline">violet</RayButton>
+          <RayButton color="red" variant="soft">red</RayButton>
+          <RayButton color="emerald" variant="ghost">emerald</RayButton>
+          <RayButton color="cyan" variant="link">cyan</RayButton>
         </div>
-        <div class="p-4">
-          <Shiki class="text-sm" lang="vue-html" :code="`<template>
-  <RayMessageProvider>
-    <NuxtLayout>
-      <NuxtPage />
-    </NuxtLayout>
-  </RayMessageProvider>
-</template>`" />
-        </div>
-      </div>
-      <div class="border border-neutral-200 dark:border-neutral-700 rounded-lg">
-        <div class="p-4 border-b border-neutral-200 dark:border-neutral-700">
-          <div class="flex items-center gap-2">
-            <button class="bg-indigo-400 text-white text-sm border border-indigo-400 px-2.5 py-1 rounded-lg"
-              @click="message.info('message info', 10000)">Info 10s</button>
-            <button class="bg-indigo-400 text-white text-sm border border-indigo-400 px-2.5 py-1 rounded-lg"
-              @click="message.success('message success')">Success</button>
-            <button class="bg-indigo-400 text-white text-sm border border-indigo-400 px-2.5 py-1 rounded-lg"
-              @click="message.warning('message warning')">Warning</button>
-            <button class="bg-indigo-400 text-white text-sm border border-indigo-400 px-2.5 py-1 rounded-lg"
-              @click="message.error('message error')">Error</button>
-          </div>
-        </div>
-        <div class="p-4">
-          <Shiki class="text-sm" lang="ts" :code="`const message = useMessage();\n
-message.info('message info', 10000);
-message.success('message success');
-message.warning('message warning');
-message.error('message error');`" />
-        </div>
-      </div>
+        <template #code>
+          {{ `
+          <template>
+            <RayButton color="amber">amber</RayButton>
+            <RayButton color="violet" variant="outline">violet</RayButton>
+            <RayButton color="red" variant="soft">red</RayButton>
+            <RayButton color="emerald" variant="ghost">emerald</RayButton>
+          </template>` }}
+        </template>
+      </DocExampleBlock>
 
-    </div>
+      <DocContentBlock title="Sizes" />
+      <DocExampleBlock lang="vue-html">
+        <div class="flex items-center gap-2 flex-wrap">
+          <RayButton size="2xs">Button</RayButton>
+          <RayButton size="xs">Button</RayButton>
+          <RayButton size="sm">Button</RayButton>
+          <RayButton size="md">Button</RayButton>
+          <RayButton size="lg">Button</RayButton>
+          <RayButton size="xl">Button</RayButton>
+        </div>
+        <template #code>
+          {{ `
+          <template>
+            <RayButton size="2xs">Button</RayButton>
+            <RayButton size="xs">Button</RayButton>
+            <RayButton size="sm">Button</RayButton>
+            <RayButton size="md">Button</RayButton>
+            <RayButton size="lg">Button</RayButton>
+            <RayButton size="xl">Button</RayButton>
+          </template>` }}
+        </template>
+      </DocExampleBlock>
+    </section>
 
+    <section>
+      <DocContentBlock title="Message" description="Message component like a toast" accent-title />
+
+      <DocExampleBlock lang="vue-html" filename="app.vue">
+        <template #code>
+          {{ `
+          <template>
+            <RayMessageProvider>
+              <NuxtLayout>
+                <NuxtPage />
+              </NuxtLayout>
+            </RayMessageProvider>
+          </template>`}}
+        </template>
+      </DocExampleBlock>
+
+      <DocExampleBlock lang="ts">
+        <div class="flex items-center gap-2">
+          <RayButton @click="message.info('message info', 10000)">Info 10s</RayButton>
+          <RayButton @click="message.success('message success')">Success</RayButton>
+          <RayButton @click="message.warning('message warning')">Warning</RayButton>
+          <RayButton @click="message.error('message error')">Error</RayButton>
+          <RayButton @click="console.log('test')" color="red">Test</RayButton>
+        </div>
+        <template #code>
+          {{ `
+          const message = useMessage();
+
+          message.info('message info', 10000);
+          message.success('message success');
+          message.warning('message warning');
+          message.error('message error');` }}
+        </template>
+      </DocExampleBlock>
+    </section>
   </div>
 </template>
 
-<style scoped></style>
+<style scoped>
+section {
+  @apply w-full flex flex-col gap-4;
+}
+</style>
diff --git a/.playground/pages/installation.vue b/.playground/pages/installation.vue
new file mode 100644
index 0000000..88e282b
--- /dev/null
+++ b/.playground/pages/installation.vue
@@ -0,0 +1,59 @@
+<script lang="ts" setup>
+const configuration_code = `
+export default defineAppConfig({
+  rayui: {
+    primary: "indigo",  // primary color
+    gray: "neutral",    // gray color
+    strategy: "merge",  // merge or override
+    // components configuration...
+    // button: {}
+  },
+});
+`
+</script>
+
+<template>
+  <div class="flex flex-col items-start gap-12 pb-20">
+    <section>
+      <DocContentBlock title="Introduction"
+        description="This project aims to facilitate sharing a component library across multiple projects for my own use. Open-sourcing it is just a bonus. Therefore, I am under no obligation to meet your requirements, and breaking changes may occur at any time. Of course, pull requests are welcome."
+        accent-title />
+    </section>
+    <section>
+      <DocContentBlock title="Installation"
+        description="This project is a Nuxt Layer and can currently only be used with Nuxt. Get started using one of the following methods"
+        accent-title />
+
+      <DocContentBlock title="GitHub" />
+      <DocExampleBlock lang="ts" filename="nuxt.config.ts">
+        <template #code>
+          {{ `\nexport default defineNuxtConfig({\n&nbsp;&nbsp;extends: ["github:HoshinoSuzumi/rayine-layer"]\n}` }}
+        </template>
+      </DocExampleBlock>
+
+      <DocContentBlock title="NPM" />
+      <DocExampleBlock lang="sh" filename="terminal">
+        <template #code>npm install rayine-layer</template>
+      </DocExampleBlock>
+      <DocExampleBlock lang="ts" filename="nuxt.config.ts">
+        <template #code>
+          {{ `\nexport default defineNuxtConfig({\n&nbsp;&nbsp;extends: ["rayine-layer"]\n}` }}
+        </template>
+      </DocExampleBlock>
+    </section>
+    <section>
+      <DocContentBlock title="Configuration" description="All components will be automatically injected" accent-title />
+      <DocExampleBlock lang="ts" filename="app.config.ts">
+        <template #code>
+          {{ configuration_code }}
+        </template>
+      </DocExampleBlock>
+    </section>
+  </div>
+</template>
+
+<style scoped>
+section {
+  @apply w-full flex flex-col gap-4;
+}
+</style>
diff --git a/app.config.ts b/app.config.ts
index e3276b7..b489f7b 100644
--- a/app.config.ts
+++ b/app.config.ts
@@ -1,14 +1,24 @@
-export default defineAppConfig({
-  myLayer: {
-    name: 'Hello from Nuxt layer'
-  }
-})
+import type { DeepPartial, Strategy } from "./types/utils";
+import type * as config from "./ui.config";
 
-declare module '@nuxt/schema' {
+export default defineAppConfig({
+  rayui: {
+    primary: "indigo",
+    gray: "neutral",
+    strategy: "merge",
+  },
+});
+
+export type RayUI = {
+  primary?: string;
+  gray?: string;
+  strategy?: Strategy;
+  colors?: string[];
+  [key: string]: any;
+} & DeepPartial<typeof config>;
+
+declare module "@nuxt/schema" {
   interface AppConfigInput {
-    myLayer?: {
-      /** Project name */
-      name?: string
-    }
+    rayui?: RayUI;
   }
 }
diff --git a/components/elements/Button.vue b/components/elements/Button.vue
index c76e1de..435eea7 100644
--- a/components/elements/Button.vue
+++ b/components/elements/Button.vue
@@ -1,13 +1,68 @@
 <script lang="ts" setup>
+import { twJoin, twMerge } from 'tailwind-merge';
+import { button } from '../../ui.config'
+import type { DeepPartial, Strategy } from '../../types/utils';
+import type { PropType } from 'vue';
+import type { ButtonColor, ButtonSize, ButtonVariant } from '../../types/button';
 
+const config = button;
+
+const props = defineProps({
+  class: {
+    type: String,
+    default: ''
+  },
+  padded: {
+    type: Boolean,
+    default: true
+  },
+  square: {
+    type: Boolean,
+    default: false
+  },
+  block: {
+    type: Boolean,
+    default: false
+  },
+  size: {
+    type: String as PropType<ButtonSize>,
+    default: () => button.default.size,
+  },
+  color: {
+    type: String as PropType<ButtonColor>,
+    default: () => button.default.color,
+  },
+  variant: {
+    type: String as PropType<ButtonVariant>,
+    default: () => button.default.variant
+  },
+  ui: {
+    type: Object as PropType<DeepPartial<typeof config> & { strategy?: Strategy }>,
+    default: () => ({})
+  }
+})
+
+const { ui, attrs } = useUI('button', toRef(props, 'ui'), config)
+
+const buttonClass = computed(() => {
+  // @ts-ignore
+  const variant = ui.value.color?.[props.color as string]?.[props.variant as string] || ui.value.variant[props.variant]
+  return twMerge(twJoin(
+    ui.value.base,
+    ui.value.font,
+    ui.value.rounded,
+    ui.value.size[props.size],
+    props.padded && ui.value.padding[props.size],
+    variant?.replaceAll('{color}', props.color),
+    props.block ? ui.value.block : ui.value.inline,
+  ), props.class)
+})
 </script>
 
 <template>
-  <button class="bg-cyan-200 rounded-lg border border-neutral-50 px-2 py-1">
+  <button :class="buttonClass" v-bind="{ ...attrs }">
     <slot></slot>
   </button>
 </template>
 
-<style scoped>
-
-</style>
+<style scoped></style>
diff --git a/components/overlays/Message.vue b/components/overlays/Message.vue
index 9ebcc39..da582f3 100644
--- a/components/overlays/Message.vue
+++ b/components/overlays/Message.vue
@@ -1,5 +1,5 @@
 <script lang="ts" setup>
-import type { MessageProviderApi, Message } from '../../types/Message';
+import type { MessageProviderApi, Message } from '../../types/message';
 
 const providerApi = inject<MessageProviderApi>('ray-message-provider')
 
diff --git a/components/overlays/MessageProvider.vue b/components/overlays/MessageProvider.vue
index f4168f9..d25fc04 100644
--- a/components/overlays/MessageProvider.vue
+++ b/components/overlays/MessageProvider.vue
@@ -1,5 +1,5 @@
 <script lang="ts" setup>
-import type { Message, MessageType } from '../../types/Message';
+import type { Message, MessageType } from '../../types/message';
 
 const props = defineProps({
   max: {
diff --git a/composables/useMessage.ts b/composables/useMessage.ts
index a11ef93..263d45d 100644
--- a/composables/useMessage.ts
+++ b/composables/useMessage.ts
@@ -1,4 +1,4 @@
-import type { MessageApi } from "../types/Message";
+import type { MessageApi } from "../types/message";
 
 export const useMessage = () => {
   const message = inject<MessageApi>("ray-message");
diff --git a/composables/useUI.ts b/composables/useUI.ts
new file mode 100644
index 0000000..ba8fe9e
--- /dev/null
+++ b/composables/useUI.ts
@@ -0,0 +1,29 @@
+import type { DeepPartial, Strategy } from "../types/utils";
+
+export const useUI = <T>(
+  key: string,
+  ui?: Ref<(DeepPartial<T> & { strategy?: Strategy }) | undefined>,
+  config?: T | Ref<T>
+) => {
+  const _attrs = useAttrs();
+  const appConfig = useAppConfig();
+
+  const attrs = computed(() => omit(_attrs, ["class"]));
+
+  const _computedUiConfig = computed(() => {
+    const _ui = toValue(ui);
+    const _config = toValue(config);
+
+    return mergeUiConfig<T>(
+      _ui?.strategy || (appConfig.rayui?.strategy as Strategy),
+      _ui || {},
+      getValueByPath(appConfig.rayui, key, {}),
+      _config || {}
+    );
+  });
+
+  return {
+    ui: _computedUiConfig,
+    attrs,
+  };
+};
diff --git a/nuxt.config.ts b/nuxt.config.ts
index d322d64..2f313f4 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -1,8 +1,58 @@
+import { addTemplate, useNuxt } from "@nuxt/kit";
+import { setColors } from "./utils/colors";
+import { generateSafelist } from "./utils/colors";
+
 // https://nuxt.com/docs/api/configuration/nuxt-config
 export default defineNuxtConfig({
   devtools: { enabled: true },
   compatibilityDate: "2024-11-15",
   modules: ["@nuxtjs/tailwindcss"],
+  hooks: {
+    "tailwindcss:config": (tailwindConfig) => {
+      const nuxt = useNuxt();
+
+      tailwindConfig.theme = tailwindConfig.theme || {};
+      tailwindConfig.theme.extend = tailwindConfig.theme.extend || {};
+      tailwindConfig.theme.extend.colors =
+        tailwindConfig.theme.extend.colors || {};
+
+      const colors = setColors(tailwindConfig.theme);
+
+      // generate safelist and inject it into tailwindConfig
+      const safelist = generateSafelist(
+        ["primary", "amber", "violet", "red", "emerald", "cyan"],
+        colors
+      );
+      tailwindConfig.safelist = safelist;
+
+      // inject colors into appConfig
+      nuxt.options.appConfig.rayui = nuxt.options.appConfig.rayui || {};
+      nuxt.options.appConfig.rayui.colors = colors;
+
+      const template = addTemplate({
+        filename: "ray.colors.mjs",
+        getContents: () =>
+          `export default ${JSON.stringify(
+            nuxt.options.appConfig.rayui.colors
+          )};`,
+        write: true,
+      });
+      const typesTemplate = addTemplate({
+        filename: "ray.colors.d.ts",
+        getContents: () =>
+          `declare module '#ray-colors' { const defaultExport: ${JSON.stringify(
+            nuxt.options.appConfig.rayui.colors
+          )}; export default defaultExport; }`,
+        write: true,
+      });
+
+      nuxt.options.alias["#ray-colors"] = template.dst;
+
+      nuxt.hook("prepare:types", (opts) => {
+        opts.references.push({ path: typesTemplate.dst });
+      });
+    },
+  },
   components: [
     {
       path: "./components",
diff --git a/package.json b/package.json
index 71288ed..068817d 100644
--- a/package.json
+++ b/package.json
@@ -21,5 +21,9 @@
     "typescript": "^5.6.3",
     "vue": "latest"
   },
-  "packageManager": "pnpm@9.13.2+sha512.88c9c3864450350e65a33587ab801acf946d7c814ed1134da4a924f6df5a2120fd36b46aab68f7cd1d413149112d53c7db3a4136624cfd00ff1846a0c6cef48a"
+  "packageManager": "pnpm@9.13.2+sha512.88c9c3864450350e65a33587ab801acf946d7c814ed1134da4a924f6df5a2120fd36b46aab68f7cd1d413149112d53c7db3a4136624cfd00ff1846a0c6cef48a",
+  "dependencies": {
+    "defu": "^6.1.4",
+    "tailwind-merge": "^2.5.4"
+  }
 }
diff --git a/plugins/colors.ts b/plugins/colors.ts
new file mode 100644
index 0000000..e992ce4
--- /dev/null
+++ b/plugins/colors.ts
@@ -0,0 +1,87 @@
+import { computed } from "vue";
+import { defineNuxtPlugin, useAppConfig, useNuxtApp, useHead } from "#imports";
+import colors from "tailwindcss/colors";
+
+const rgbHexPattern = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i;
+
+function hexToRgb(hex: string) {
+  const shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
+  hex = hex.replace(shorthandRegex, function (_, r, g, b) {
+    return r + r + g + g + b + b;
+  });
+
+  const result = rgbHexPattern.exec(hex);
+  return result
+    ? `${Number.parseInt(result[1], 16)} ${Number.parseInt(
+        result[2],
+        16
+      )} ${Number.parseInt(result[3], 16)}`
+    : null;
+}
+
+function parseConfigValue(value: string) {
+  return rgbHexPattern.test(value) ? hexToRgb(value) : value;
+}
+
+export default defineNuxtPlugin(() => {
+  const appConfig = useAppConfig();
+  const nuxtApp = useNuxtApp();
+
+  const root = computed(() => {
+    const primary: Record<string, string> | undefined = getValueByPath(
+      colors,
+      appConfig.rayui.primary
+    );
+    const gray: Record<string, string> | undefined = getValueByPath(
+      colors,
+      appConfig.rayui.gray
+    );
+
+    return `:root {
+${Object.entries(primary || colors.indigo)
+  .map(([key, value]) => `--color-primary-${key}: ${parseConfigValue(value)};`)
+  .join("\n")}
+--color-primary-DEFAULT: var(--color-primary-500);
+
+${Object.entries(gray || colors.neutral)
+  .map(([key, value]) => `--color-gray-${key}: ${parseConfigValue(value)};`)
+  .join("\n")}
+}
+
+.dark {
+  --color-primary-DEFAULT: var(--color-primary-400);
+}
+`;
+  });
+
+  const headData: any = {
+    style: [
+      {
+        innerHTML: () => root.value,
+        tagPriority: -2,
+        id: "ray-colors",
+      },
+    ],
+  };
+
+  if (
+    import.meta.client &&
+    nuxtApp.isHydrating &&
+    !nuxtApp.payload.serverRendered
+  ) {
+    const style = document.createElement("style");
+
+    style.innerHTML = root.value;
+    style.setAttribute("data-ray-colors", "");
+    document.head.appendChild(style);
+
+    headData.script = [
+      {
+        innerHTML:
+          "document.head.removeChild(document.querySelector('[data-ray-colors]'))",
+      },
+    ];
+  }
+
+  useHead(headData);
+});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3ca689d..6644ae1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,6 +7,13 @@ settings:
 importers:
 
   .:
+    dependencies:
+      defu:
+        specifier: ^6.1.4
+        version: 6.1.4
+      tailwind-merge:
+        specifier: ^2.5.4
+        version: 2.5.4
     devDependencies:
       '@nuxt/eslint':
         specifier: latest
@@ -3744,6 +3751,9 @@ packages:
     peerDependencies:
       tailwindcss: 1 || 2 || 2.0.1-compat || 3
 
+  tailwind-merge@2.5.4:
+    resolution: {integrity: sha512-0q8cfZHMu9nuYP/b5Shb7Y7Sh1B7Nnl5GqNr1U+n2p6+mybvRtayrQ+0042Z5byvTA8ihjlP8Odo8/VnHbZu4Q==}
+
   tailwindcss@3.4.15:
     resolution: {integrity: sha512-r4MeXnfBmSOuKUWmXe6h2CcyfzJCEk4F0pptO5jlnYSIViUkVmsawj80N5h2lO3gwcmSb4n3PuN+e+GC1Guylw==}
     engines: {node: '>=14.0.0'}
@@ -8533,6 +8543,8 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  tailwind-merge@2.5.4: {}
+
   tailwindcss@3.4.15:
     dependencies:
       '@alloc/quick-lru': 5.2.0
diff --git a/tailwind.config.ts b/tailwind.config.ts
new file mode 100644
index 0000000..b594f20
--- /dev/null
+++ b/tailwind.config.ts
@@ -0,0 +1,11 @@
+import { type Config } from "tailwindcss";
+
+const config: Config = {
+  content: [
+    "./components/**/*.{vue,js,ts,jsx,tsx}",
+    "./ui.config/**/*.{vue,js,ts,jsx,tsx}",
+  ],
+  safelist: [],
+};
+
+export default config;
diff --git a/types/button.d.ts b/types/button.d.ts
new file mode 100644
index 0000000..489514f
--- /dev/null
+++ b/types/button.d.ts
@@ -0,0 +1,23 @@
+import type { button } from "../ui.config";
+import type colors from "#ray-colors";
+import type { ExtractDeepObject, NestedKeyOf, ExtractDeepKey } from "./utils";
+import type { AppConfig } from "nuxt/schema";
+
+export type ButtonSize =
+  | keyof typeof button.size
+  | ExtractDeepKey<AppConfig, ["rayui", "button", "size"]>;
+export type ButtonColor =
+  | keyof typeof button.color
+  | ExtractDeepKey<AppConfig, ["rayui", "button", "color"]>
+  | (typeof colors)[number];
+export type ButtonVariant =
+  | keyof typeof button.variant
+  | ExtractDeepKey<AppConfig, ["rayui", "button", "variant"]>
+  | NestedKeyOf<typeof button.color>
+  | NestedKeyOf<ExtractDeepObject<AppConfig, ["rayui", "button", "color"]>>;
+
+export interface Button {
+  size?: ButtonSize;
+  color?: ButtonColor;
+  variant?: ButtonVariant;
+}
diff --git a/types/utils.d.ts b/types/utils.d.ts
new file mode 100644
index 0000000..f4c5fa2
--- /dev/null
+++ b/types/utils.d.ts
@@ -0,0 +1,50 @@
+export type Strategy = "override" | "merge";
+
+export interface TightMap<O = any> {
+  [key: string]: TightMap | O;
+}
+
+export type DeepPartial<T, O = any> = {
+  [P in keyof T]?: T[P] extends object
+    ? DeepPartial<T[P], O>
+    : T[P] extends string
+    ? string
+    : T[P];
+} & {
+  [key: string]: O | TightMap<O>;
+};
+
+export type NestedKeyOf<ObjectType extends Record<string, any>> = {
+  [Key in keyof ObjectType]: ObjectType[Key] extends Record<string, any>
+    ? NestedKeyOf<ObjectType[Key]>
+    : Key;
+}[keyof ObjectType];
+
+type DeepKey<T, Keys extends string[]> = Keys extends [
+  infer First,
+  ...infer Rest
+]
+  ? First extends keyof T
+    ? Rest extends string[]
+      ? DeepKey<T[First], Rest>
+      : never
+    : never
+  : T;
+
+export type ExtractDeepKey<T, Path extends string[]> = DeepKey<
+  T,
+  Path
+> extends infer Result
+  ? Result extends Record<string, any>
+    ? keyof Result
+    : never
+  : never;
+
+export type ExtractDeepObject<T, Path extends string[]> = DeepKey<
+  T,
+  Path
+> extends infer Result
+  ? Result extends Record<string, any>
+    ? Result
+    : never
+  : never;
diff --git a/ui.config/elements/button.ts b/ui.config/elements/button.ts
new file mode 100644
index 0000000..b426438
--- /dev/null
+++ b/ui.config/elements/button.ts
@@ -0,0 +1,47 @@
+export default {
+  base: "focus:outline-none focus-visible:outline-0 disabled:cursor-not-allowed disabled:opacity-75 aria-disabled:cursor-not-allowed aria-disabled:opacity-75 flex-shrink-0 transition",
+  rounded: "rounded-lg",
+  font: "font-medium",
+  block: "w-full flex justify-center items-center",
+  inline: "inline-flex items-center",
+  size: {
+    "2xs": "text-xs",
+    xs: "text-xs",
+    sm: "text-sm",
+    md: "text-sm",
+    lg: "text-sm",
+    xl: "text-base",
+  },
+  padding: {
+    "2xs": "px-2 py-1",
+    xs: "px-2.5 py-1.5",
+    sm: "px-2.5 py-1.5",
+    md: "px-3 py-2",
+    lg: "px-3.5 py-2.5",
+    xl: "px-3.5 py-2.5",
+  },
+  square: {
+    "2xs": "p-1",
+    xs: "p-1.5",
+    sm: "p-1.5",
+    md: "p-2",
+    lg: "p-2.5",
+    xl: "p-2.5",
+  },
+  color: {},
+  variant: {
+    solid:
+      "shadow-sm hover:shadow-md disabled:hover:shadow-sm active:shadow-none bg-{color}-500 disabled:bg-{color}-500 aria-disabled:bg-{color}-500 hover:bg-{color}-600 text-white active:bg-{color}-700 dark:active:bg-{color}-500 focus:ring focus:ring-{color}-300 focus:ring-opacity-50 dark:focus:ring-opacity-20",
+    outline:
+      "ring-1 ring-inset ring-current ring-{color}-500 text-{color}-500 dark:hover:text-{color}-400 dark:hover:text-{color}-500 hover:bg-{color}-100 dark:hover:bg-{color}-900 disabled:bg-transparent disabled:hover:bg-transparent aria-disabled:bg-transparent focus-visible:ring-2 focus-visible:ring-{color}-500 dark:focus-visible:ring-{color}-400",
+    soft: "text-{color}-500 dark:text-{color}-400 bg-{color}-50 hover:bg-{color}-100 disabled:bg-{color}-50 aria-disabled:bg-{color}-50 dark:bg-{color}-950 dark:hover:bg-{color}-900 dark:disabled:bg-{color}-950 dark:aria-disabled:bg-{color}-950 focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-{color}-500 dark:focus-visible:ring-{color}-400 transition-none",
+    ghost:
+      "text-{color}-500 dark:text-{color}-400 hover:bg-{color}-50 disabled:bg-transparent aria-disabled:bg-transparent dark:hover:bg-{color}-950 dark:disabled:bg-transparent dark:aria-disabled:bg-transparent focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-{color}-500 dark:focus-visible:ring-{color}-400",
+    link: "text-{color}-500 hover:text-{color}-600 disabled:text-{color}-500 aria-disabled:text-{color}-500 dark:text-{color}-400 dark:hover:text-{color}-500 dark:disabled:text-{color}-400 dark:aria-disabled:text-{color}-400 underline-offset-4 hover:underline focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-{color}-500 dark:focus-visible:ring-{color}-400",
+  },
+  default: {
+    size: "sm",
+    color: "primary",
+    variant: "solid",
+  },
+};
diff --git a/ui.config/index.ts b/ui.config/index.ts
new file mode 100644
index 0000000..e329355
--- /dev/null
+++ b/ui.config/index.ts
@@ -0,0 +1,2 @@
+// elements
+export { default as button } from './elements/button'
diff --git a/utils/colors.ts b/utils/colors.ts
new file mode 100644
index 0000000..a637b30
--- /dev/null
+++ b/utils/colors.ts
@@ -0,0 +1,167 @@
+import type { Config as TwConfig } from "tailwindcss";
+import defaultColors from "tailwindcss/colors";
+import type { SafelistConfig } from "tailwindcss/types/config";
+
+// @ts-ignore
+delete defaultColors.lightBlue;
+// @ts-ignore
+delete defaultColors.warmGray;
+// @ts-ignore
+delete defaultColors.trueGray;
+// @ts-ignore
+delete defaultColors.coolGray;
+// @ts-ignore
+delete defaultColors.blueGray;
+
+const colorsToRegex = (colors: string[]): string => colors.join("|");
+
+type ColorConfig = Exclude<NonNullable<TwConfig["theme"]>["colors"], Function>;
+
+export const setColors = (theme: TwConfig["theme"]) => {
+  const globalColors: ColorConfig = {
+    ...(theme?.colors || defaultColors),
+    ...theme?.extend?.colors,
+  };
+
+  // @ts-ignore
+  globalColors.primary = theme.extend.colors.primary = {
+    50: "rgb(var(--color-primary-50) / <alpha-value>)",
+    100: "rgb(var(--color-primary-100) / <alpha-value>)",
+    200: "rgb(var(--color-primary-200) / <alpha-value>)",
+    300: "rgb(var(--color-primary-300) / <alpha-value>)",
+    400: "rgb(var(--color-primary-400) / <alpha-value>)",
+    500: "rgb(var(--color-primary-500) / <alpha-value>)",
+    600: "rgb(var(--color-primary-600) / <alpha-value>)",
+    700: "rgb(var(--color-primary-700) / <alpha-value>)",
+    800: "rgb(var(--color-primary-800) / <alpha-value>)",
+    900: "rgb(var(--color-primary-900) / <alpha-value>)",
+    950: "rgb(var(--color-primary-950) / <alpha-value>)",
+    DEFAULT: "rgb(var(--color-primary-DEFAULT) / <alpha-value>)",
+  };
+
+  if (globalColors.gray) {
+    // @ts-ignore
+    globalColors.cool = theme.extend.colors.cool = defaultColors.gray;
+  }
+
+  // @ts-ignore
+  globalColors.gray = theme.extend.colors.gray = {
+    50: "rgb(var(--color-gray-50) / <alpha-value>)",
+    100: "rgb(var(--color-gray-100) / <alpha-value>)",
+    200: "rgb(var(--color-gray-200) / <alpha-value>)",
+    300: "rgb(var(--color-gray-300) / <alpha-value>)",
+    400: "rgb(var(--color-gray-400) / <alpha-value>)",
+    500: "rgb(var(--color-gray-500) / <alpha-value>)",
+    600: "rgb(var(--color-gray-600) / <alpha-value>)",
+    700: "rgb(var(--color-gray-700) / <alpha-value>)",
+    800: "rgb(var(--color-gray-800) / <alpha-value>)",
+    900: "rgb(var(--color-gray-900) / <alpha-value>)",
+    950: "rgb(var(--color-gray-950) / <alpha-value>)",
+  };
+
+  return Object.entries(globalColors)
+    .filter(([, value]) => typeof value === "object")
+    .map(([key]) => key);
+};
+
+const safelistForComponent: Record<
+  string,
+  (colors: string) => TwConfig["safelist"]
+> = {
+  button: (colorsToRegex) => [
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-50$`),
+      variants: ["hover", "disabled"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-100$`),
+      variants: ["hover"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-400$`),
+      variants: ["dark", "dark:disabled"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-500$`),
+      variants: ["disabled", "dark:hover", "dark:active"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-600$`),
+      variants: ["hover"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-700$`),
+      variants: ["active"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-900$`),
+      variants: ["dark:hover"],
+    },
+    {
+      pattern: RegExp(`^bg-(${colorsToRegex})-950$`),
+      variants: ["dark", "dark:hover", "dark:disabled"],
+    },
+    {
+      pattern: RegExp(`^text-(${colorsToRegex})-400$`),
+      variants: ["dark", "dark:hover", "dark:disabled"],
+    },
+    {
+      pattern: RegExp(`^text-(${colorsToRegex})-500$`),
+      variants: ["dark:hover", "disabled"],
+    },
+    {
+      pattern: RegExp(`^text-(${colorsToRegex})-600$`),
+      variants: ["hover"],
+    },
+    {
+      pattern: RegExp(`^outline-(${colorsToRegex})-400$`),
+      variants: ["dark:focus-visible"],
+    },
+    {
+      pattern: RegExp(`^outline-(${colorsToRegex})-500$`),
+      variants: ["focus-visible"],
+    },
+    {
+      pattern: RegExp(`^ring-(${colorsToRegex})-300$`),
+      variants: ["focus", "dark:focus"],
+    },
+    {
+      pattern: RegExp(`^ring-(${colorsToRegex})-400$`),
+      variants: ["dark:focus-visible"],
+    },
+    {
+      pattern: RegExp(`^ring-(${colorsToRegex})-500$`),
+      variants: ["focus-visible"],
+    },
+  ],
+};
+
+export const generateSafelist = (
+  colors: string[],
+  globalColors: string[]
+): string[] => {
+  const safelist = Object.keys(safelistForComponent)
+    .flatMap((component) =>
+      safelistForComponent[component](colorsToRegex(colors))
+    )
+    .filter(
+      (item): item is Exclude<SafelistConfig, string> => item !== undefined
+    );
+
+  const extractColorsFromPattern = (pattern: RegExp): string[] => {
+    const matches = pattern.source.match(/\(([^)]+)\)/);
+    if (!matches) return [];
+    return matches[1].split("|").map((color) =>
+      pattern.source.replace(matches[0], color).replace(/[\^\$]/g, "")
+    );
+  };
+
+  return safelist.flatMap((item) => {
+    const replacedStrings = extractColorsFromPattern(item.pattern);
+    return replacedStrings.concat(
+      item.variants?.flatMap((variant) =>
+        replacedStrings.map((str) => `${variant}:${str}`)
+      ) || []
+    );
+  });
+};
diff --git a/utils/index.ts b/utils/index.ts
new file mode 100644
index 0000000..a6978f9
--- /dev/null
+++ b/utils/index.ts
@@ -0,0 +1,28 @@
+import { defu, createDefu } from "defu";
+import { extendTailwindMerge } from "tailwind-merge";
+import type { Strategy } from "../types/utils";
+
+const custonTwMerge = extendTailwindMerge<string, string>({});
+
+export const twMergeDefu = createDefu((obj, key, val, namespace) => {
+  if (namespace === "default" || namespace.startsWith("default.")) {
+    return false;
+  }
+  if (
+    typeof obj[key] === "string" &&
+    typeof val === "string" &&
+    obj[key] &&
+    val
+  ) {
+    // @ts-ignore
+    obj[key] = custonTwMerge<string, string>(obj[key], val);
+    return true;
+  }
+});
+
+export const mergeUiConfig = <T>(strategy: Strategy, ...configs: any): T => {
+  if (strategy === "merge") {
+    return twMergeDefu({}, ...configs) as T;
+  }
+  return defu({}, ...configs) as T;
+};
diff --git a/utils/objectUtils.ts b/utils/objectUtils.ts
new file mode 100644
index 0000000..570ecce
--- /dev/null
+++ b/utils/objectUtils.ts
@@ -0,0 +1,37 @@
+export const omit = <T extends Record<string, any>, K extends keyof T>(
+  object: T,
+  keysToOmit: K[] | any[]
+): Pick<T, Exclude<keyof T, K>> => {
+  const result = { ...object };
+
+  for (const key of keysToOmit) {
+    delete result[key];
+  }
+
+  return result;
+};
+
+export const getValueByPath = (
+  obj: Record<string, any>,
+  path: string | (string | number)[],
+  defaultValue?: any
+): any => {
+  if (typeof path === "string") {
+    path = path.split(".").map((key) => {
+      const num = Number(key);
+      return Number.isNaN(num) ? key : num;
+    });
+  }
+
+  let result = obj;
+
+  for (const key of path) {
+    if (result === undefined || result === null) {
+      return defaultValue;
+    }
+
+    result = result[key];
+  }
+
+  return result !== undefined ? result : defaultValue;
+};