The [Tk] command `tk_setPalette` is documented
http://www.purl.org/tcl/home/man/tcl8.4/TkCmd/palette.htm
and implemented in the Tk library file `palette.tcl`.

    :   '''tk_setPalette''' ''backgroundColor''

Tests defaults for a number of widget types, including `[checkbutton]` and `[radiobutton]`. This has the side-effect of setting the global variables `selectedButton` and `checkbutton`. This behavior is undocumented.

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**See Also**
   * [palette]
   * [tk_bisque]
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