Killed opacity on pen adder.

h/css/inject.scss

@@ -44,7 +44,6 @@
     border: none;
     cursor: pointer;
     height: 100%;
-    opacity: .8;
     text-indent: -999em;
     width: 100%;
     margin: 0;
@@ -61,10 +60,6 @@
     &:before {
       border-color: $hoverborder;
     }
-
-    button {
-      opacity: 1;
-    }
   }
 }