And i notice there are only 11 userColors initialised for some reason. I had been duplicating this in my program until today, but i find that If i tell bwidgets to use 12 User Colors, it works perfectly.

Hello together,
the solution is simple and in colors.tcl, line 20:
Please add the twelfth _userColors definition "\#ffffff".
Reason, as long as the inner foreach loop runs only over the defined values, it breaks after the eleventh defined color (line 187 ff.).
Best greetings and success
Thomas W.

Hi Steven,
thank you for the proposal.
I think, there are 11 user colors for the reason, that all colors may be shown on the small color palette.

The colors are aranged in 6 columns on both widgets and 5 rows.
In the small color picker, the lower-right corner has an icon to open the big color picker.

That might be the reason, why there is one user color less?

It might be also ok to show the last user color only in the large display.

Thanks for any patches.

Take care,
Harald