background color update

Author: tczagany

package.json

@@ -2,7 +2,7 @@
   "name": "code-viz-stat",
   "displayName": "CodeViz Stat",
   "description": "Explore source code statistics with animated vizualizations.",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "publisher": "vizzuhq",
   "author": {
     "name": "Tamás Czagány",
@@ -17,7 +17,7 @@
     "vscode": "^1.46.0"
   },
   "galleryBanner": {
-    "color": "#C1C1C1",
+    "color": "#1C1C1C",
     "theme": "dark"
   },
   "license": "SEE LICENSE IN LICENSE.txt",