round color 背景图调整

 <label class="round-color{{#if cur}} cur{{/if}}" title="{{title}}">
-    <div class="icon-back" style="background: {{rgb}}"></div>
+    <div class="icon-back" style="background: {{rgb}}">
+        {{#if bgImg}}
+            <img src="{{bgImg}}">
+        {{/if}}
+    </div>
     <span class="iconfont icon-cover">&#xe61b;</span>
     <span class="iconfont icon-round">&#xe620;</span>
 </label>
\ No newline at end of file

@@ -17,6 +17,11 @@
         width: 90%;
         height: 90%;
         margin: 5%;
+
+        img {
+            width: 100%;
+            height: 100%;
+        }
     }
 
     .icon-cover {