docs: unify logo color, thanks @sibbng

interactive/components/Intro.vue

@@ -1,18 +1,9 @@
 <template>
   <div px5 py12 gap4 c-truegray5 h-full of-auto>
-    <svg w-25 h-25 mxa mb4 mt8 flex-none viewBox="0 0 220 220" xmlns="http://www.w3.org/2000/svg">
-      <path
-        d="M117.722 167.444C117.722 139.83 140.108 117.444 167.722 117.444V117.444C195.336 117.444 217.722 139.83 217.722 167.444V167.444C217.722 195.058 195.336 217.444 167.722 217.444V217.444C140.108 217.444 117.722 195.058 117.722 167.444V167.444Z"
-        fill="#666" fill-opacity="60"
-      />
-      <path
-        d="M117.722 52.5561C117.722 24.9419 140.108 2.55614 167.722 2.55614V2.55614C195.336 2.55614 217.722 24.9419 217.722 52.5561V97.5561C217.722 100.318 215.483 102.556 212.722 102.556H122.722C119.961 102.556 117.722 100.318 117.722 97.5561V52.5561Z"
-        fill="#666" fill-opacity="30"
-      />
-      <path
-        d="M102.278 167.444C102.278 195.058 79.8922 217.444 52.278 217.444V217.444C24.6637 217.444 2.27796 195.058 2.27796 167.444L2.27796 122.444C2.27796 119.682 4.51654 117.444 7.27796 117.444L97.278 117.444C100.039 117.444 102.278 119.682 102.278 122.444L102.278 167.444Z"
-        fill="#666"
-      />
+    <svg w-25 h-25 mxa mb4 mt8 flex-none viewBox="0 0 220 220" fill="none" xmlns="http://www.w3.org/2000/svg">
+      <path d="M117.444 167.888C117.444 140.273 139.83 117.888 167.444 117.888V117.888C195.058 117.888 217.444 140.273 217.444 167.888V167.888C217.444 195.502 195.058 217.888 167.444 217.888V217.888C139.83 217.888 117.444 195.502 117.444 167.888V167.888Z" fill="#858585" />
+      <path d="M117.444 53C117.444 25.3858 139.83 3 167.444 3V3C195.058 3 217.444 25.3858 217.444 53V98C217.444 100.761 215.205 103 212.444 103H122.444C119.683 103 117.444 100.761 117.444 98V53Z" fill="#CCCCCC" />
+      <path d="M102 167.888C102 195.502 79.6142 217.888 52 217.888V217.888C24.3858 217.888 2 195.502 2 167.888L2.00001 122.888C2.00001 120.126 4.23859 117.888 7.00001 117.888L97 117.888C99.7614 117.888 102 120.126 102 122.888L102 167.888Z" fill="#4D4D4D" />
     </svg>
     <p>
       Welcome to UnoCSS <b c-black dark:c-white>Interactive</b> docs! <sup>Beta</sup>