Add Open Collective icon

src/icons/icons.yml

@@ -7365,4 +7365,13 @@ icons:
       - notification
       - ringing
     categories:
-      - Web Application Icons
+      - Web Application Icons
+
+  - name:       Open Collective
+    id:         open-collective
+    unicode:    f336
+    created:    1.1
+    filter:
+      - funding platform
+    categories:
+      - Brand Icons

src/icons/svg/open-collective.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1536" height="1536" viewBox="0 0 1536 1536">
+    <path d="M1256.332 765.967c0 96.758-28.11 189.489-76.278 266.074l196.736 197.541c96.336-129.01 156.546-290.272 156.546-463.615 0-173.342-60.21-334.605-156.584-463.653l-196.698 197.58c48.168 76.585 76.278 165.29 76.278 266.073z" fill-rule="evenodd"/>
+    <path d="M766.793 1257.808c-268.988 0-489.77-221.74-489.77-491.84 0-270.1 220.782-491.841 489.731-491.841 100.401 0 188.683 28.226 265 80.612l196.698-197.503C1099.979 60.44 939.407 0 766.792 0 345.249 0 .02 342.62.02 769.956.02 1197.368 345.248 1536 766.793 1536c176.602 0 337.213-60.478 465.647-157.236l-196.698-197.541c-76.278 48.36-168.587 76.585-268.95 76.585z" fill-rule="evenodd"/>
+</svg>