deco - use a color for ignored files

extensions/git/package.json

@@ -850,6 +850,15 @@
           "dark": "#73C991",
           "highContrast": "#73C991"
         }
+      },
+      {
+        "id": "git.color.ignored",
+        "description": "Color for ignored resources",
+        "defaults": {
+          "light": "#8E8E90",
+          "dark": "#A7A8A9",
+          "highContrast": "#A7A8A9"
+        }
       }
     ]
   },
@@ -864,4 +873,4 @@
     "@types/node": "7.0.43",
     "mocha": "^3.2.0"
   }
-}
\ No newline at end of file
+}

extensions/git/src/decorationProvider.ts

@@ -5,7 +5,7 @@
 
 'use strict';
 
-import { window, Uri, Disposable, Event, EventEmitter, DecorationData, DecorationProvider } from 'vscode';
+import { window, Uri, Disposable, Event, EventEmitter, DecorationData, DecorationProvider, ThemeColor } from 'vscode';
 import { Repository, GitResourceGroup } from './repository';
 import { Model } from './model';
 import { debounce } from './decorators';
@@ -38,7 +38,7 @@ class GitIgnoreDecorationProvider implements DecorationProvider {
 			if (ignored) {
 				return <DecorationData>{
 					priority: 3,
-					opacity: 0.75
+					color: new ThemeColor('git.color.ignored')
 				};
 			}
 		});