Yes . Pale Moon will allegedly try to maintain XUL compatibility , including the browser UI itself still being in XUL . And seriously , good luck to them with that . It just means that they will have to do that much more work , and will have that much less work from Mozilla that they can easily port over to Pale Moon . Unless they ' re lucky , Pale Moon will just fall further and further behind . SeaMonkey may need to keep XUL going for a bit longercommunity . o r g t w e b e x t e n s i o n s a p i a n d d e precationofxulxpcomandxbl 3459 , but they also only have so much time to work on it , so it ' s likely they will push to follow suit as soon as possible . <| sep |> this hurts <| sep |> Yes it actually is I didn ' t really know how to customize though and what colors to use .