Long-press action

[Umotas]

Could you add the feature to input symbols by long pressing?
For example:
Do long-press on "u" -> ü
o -> ö
a -> ä

Thanks

[Umotas]

Issue is closed :)
I did this by myself. I have edited some XML files only.

do you know how to change keyboard theme to pure black?

[rkkr]

Settings -> Appearance -> Theme -> Not "System" and "Set custom keyboard color" pick "#000000".