Hi Mirek,

Hope this helps...

With default light theme:

s.look = Image (32, 16)
dk = Color(48, 48, 48)
wh = Color(255, 255, 255)
After IsDark(wh):
dk = Color(48, 48, 48)
wh = Color(255, 255, 255)
s.topitemtext[0] = Color(48, 48, 48)
s.topitemtext[1] = Color(48, 48, 48)
s.topitemtext[2] = Color(33, 33, 33)
s.topitem[0] = 
s.topitem[1] = 
s.topitem[2] = Image (32, 16)
After Diff():
s.topitemtext[0] = Color(48, 48, 48)
s.topitemtext[1] = Color(48, 48, 48)
s.topitemtext[2] = Color(255, 255, 255)
s.topitem[0] = 
s.topitem[1] = 
s.topitem[2] = Color(53, 168, 84)

And dark theme:

s.look = Image (32, 16)
dk = Color(218, 218, 218)
wh = Color(64, 64, 64)
After IsDark(wh):
dk = Color(64, 64, 64)
wh = Color(218, 218, 218)
s.topitemtext[0] = Color(218, 218, 218)
s.topitemtext[1] = Color(218, 218, 218)
s.topitemtext[2] = Color(7, 7, 7)
s.topitem[0] = 
s.topitem[1] = 
s.topitem[2] = Image (32, 16)
After Diff():
s.topitemtext[0] = Color(218, 218, 218)
s.topitemtext[1] = Color(218, 218, 218)
s.topitemtext[2] = Color(7, 7, 7)
s.topitem[0] = 
s.topitem[1] = 
s.topitem[2] = Image (32, 16)

Best regards,

Tom