fix: allow array of themes

Author: joshunrau

src/tailwind/config.cts

@@ -20,7 +20,7 @@ type ConfigOptions = {
   plugins?: PluginsConfig;
   root?: string;
   extend?: {
-    theme?: Partial<CustomThemeConfig>;
+    theme?: Partial<CustomThemeConfig> | Partial<CustomThemeConfig>[];
   };
 };
 
@@ -45,6 +45,15 @@ const config = ({
     content.push(path.resolve(baseDir, 'src/**/*.{js,ts,jsx,tsx}'));
   }
 
+  let userTheme: Partial<CustomThemeConfig>[];
+  if (Array.isArray(extend.theme)) {
+    userTheme = extend.theme;
+  } else if (_.isPlainObject(extend.theme)) {
+    userTheme = [extend.theme!];
+  } else {
+    userTheme = [];
+  }
+
   return {
     content,
     darkMode: ['class', '[data-mode="dark"]'],
@@ -156,8 +165,8 @@ const config = ({
             '2xl': '1400px'
           }
         },
-        extend.theme
-      )
+        ...userTheme
+      ) as Partial<CustomThemeConfig>
     }
   };
 };