Thanks for your support!
I've been encountering some issues with the background layer in my app. I note adjust the max spritesheet size or tweak all transparent layers, the results vary—sometimes it improves slightly, and other times it gets worse. Additionally, applying the scale outer option also affects how the background appears.
Here’s an example of what it looks like the background:
Link con Scale outer
lunfardocreaciones.com/lunfardo_juegos/reaperApp_01/ReaperAppJuego_038/index.html
Link con Letter box scale
lunfardocreaciones.com/lunfardo_juegos/reaperApp_01/BatallaElemental_v004/index.html