SimpleUI Wallpaper last opened page shines through

Hi everyone,

I recently installed SimpleUI on my PocketBook Era Color and I'm really enjoying it so far. However, I've noticed a strange issue with wallpapers.

Whenever I set a wallpaper, I can still faintly see the previous screen underneath it. It doesn't matter which image I use (I've tried both PNG and JPG), the previous screen always shows through.

I do have other patches installed, so I'm wondering if this could be caused by a conflict, or if it's a known issue with SimpleUI on PocketBook devices.

Anyone knows how to fix it? I'd really appreciate any suggestions.

https://preview.redd.it/ecd3zrzelebh1.jpg?width=3024&format=pjpg&auto=webp&s=cbfefaccd922bd63cdcb253675a9ee7e0d8ebc3a