I love your editor and for me there is no editor better in Linux than yours, although there is Krita and Gimp, especially since I am a KDE fan. But I have a few ideas for further development that I really miss.

Ideas:

• The first and most important thing is to add an RGB wheel. So that you can quickly choose a color, which would save a lot of time. (1 screenshot)
• Fix a drawing bug (2 screenshots)
• Remove this cursed frame (3 screenshot)

Thanks for your attention