Merge pull request #1278 from hikaru-y/fix-dupe-bgcolor

Prevent #dupe bgcolor from being carried over when copying text

ts/editor/fields.scss

@@ -19,7 +19,9 @@
     background: var(--frame-bg);
 
     &.dupe {
-        background: var(--flag1-bg);
+        // this works around the background colour persisting in copy+paste
+        // (https://github.com/ankitects/anki/pull/1278)
+        background-image: linear-gradient(var(--flag1-bg), var(--flag1-bg));
     }
 }