Make thumbnails in edit view consistent with card view

Commit 88c1dd1 changed the behaviour of
the background colour of the thumbnails, but the edit view still used
the old behaviour. This creates more consistency.

Author: TheLastProject

app/src/main/java/protect/card_locker/LoyaltyCardEditActivity.java

@@ -1005,9 +1005,8 @@ protected void onResume() {
         }
     }
 
-    protected void setColorFromIcon() {
-        Object icon = thumbnail.getTag();
-        if (icon != null && (icon instanceof Bitmap)) {
+    protected void setColorFromIcon(Bitmap icon) {
+        if (icon != null) {
             int headerColor = Utils.getHeaderColorFromImage((Bitmap) icon, Utils.getHeaderColor(this, tempLoyaltyCard));
 
             setLoyaltyCardHeaderColor(headerColor);
@@ -1025,8 +1024,8 @@ protected void setThumbnailImage(@Nullable Bitmap bitmap) {
         if (bitmap == null) {
             generateIcon(storeFieldEdit.getText().toString().trim());
         } else {
-            thumbnail.setBackgroundColor(Color.TRANSPARENT);
-            setColorFromIcon();
+            setColorFromIcon(bitmap);
+            thumbnail.setBackgroundColor(Utils.needsDarkForeground(tempLoyaltyCard.headerColor) ? Color.BLACK : Color.WHITE);
         }
 
         if (tempLoyaltyCard.headerColor != null) {