Great schemes!

The only thing i dislike is the default ‘current_line’ color. I suggest to create ~/.config/geany/filedefs/filetypes.common with the lines:

[styling]
default=0xeeeeec;0x2e3436;false;false
current_line=0x0;0x565a5b;true;false

This will apply to all schemes.

I’ve also done the freebasic scheme based on yours. Email me if you want it.