BR,

I now saw, late -- sorry, that you are using button's showName, that is, the 
text colour has to be adjusted, not the pattern.

Then using a text field instead of 'showName' and setting the field's ink to 
"notSrcAndReverse" should do what you want (incl. nice effects).


OR:

Here's a formula for a weighted mean close to that some professional apps use 
when converting an image to grayLevel.

This is derived from "perception" values (note: .6 is close to goldenRatio) of 
the human eye:

## g = (1*r + 6*g + 3*b) div 10 for each r,g,b-pixel
used for fully opaque pixels.

hh
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