Start updating colors to OrcasHub colors

about.json

@@ -4,8 +4,7 @@
   "license_url": null,
   "components": [
     "https://github.com/jordanvidrine/discourse-category-group-boxes.git",
-    "https://github.com/discourse/discourse-clickable-topic.git",
-    "https://github.com/discourse/discourse-search-banner.git"
+    "https://github.com/discourse/discourse-clickable-topic.git"
   ],
   "modifiers": {
     "serialize_topic_excerpts": true
@@ -16,24 +15,12 @@
       "secondary": "f9fcff",
       "tertiary": "3877e5",
       "quaternary": "7e8b93",
-      "header_background": "f9fcff",
-      "header_primary": "122b43",
+      "header_background": "374151",
+      "header_primary": "e0e0e0",
       "highlight": "e6cb37",
       "danger": "d05454",
       "success": "71bd9f",
       "love": "c16ad7"
-    },
-    "air-dark": {
-      "primary": "e0e0e0",
-      "secondary": "2d2d2d",
-      "tertiary": "9a5cfd",
-      "quaternary": "71bd9f",
-      "header_background": "202020",
-      "header_primary": "e0e0e0",
-      "highlight": "9a5cfd",
-      "danger": "d05454",
-      "success": "71bd9f",
-      "love": "c16ad7"
     }
   }
 }