09-09-2018, 03:55 PM
It might just be the way your game engine handles transparency.
Exporting a png saves the background colour - as in the FG/BG swatch - in the png file. Normally this makes no difference. Gimp opens either showing transparency.
Some applications will use the setting. This screenshot the two files open in Gimp and on top the same two open in a file viewer. https://i.imgur.com/t7OeClj.jpg
It might be worth a try, erase as normal and set the BG colour to black when exporting.
Exporting a png saves the background colour - as in the FG/BG swatch - in the png file. Normally this makes no difference. Gimp opens either showing transparency.
Some applications will use the setting. This screenshot the two files open in Gimp and on top the same two open in a file viewer. https://i.imgur.com/t7OeClj.jpg
It might be worth a try, erase as normal and set the BG colour to black when exporting.