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Mastering Perl/Tk by Nancy Walsh, Stephen Lidie

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Indicator Colors

You can use the -selectcolor option to alter the color that fills the indicator when the Checkbutton or Radiobutton is selected:

-selectcolor => color

The default value is "#b03060" (a dark pink). Changing the value for -selectcolor will also change the background of the Button when the Button is selected and -indicatoron => 0 .

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