This XCMD was created to do animation and provide color capabilities. TKshowPICT draws to the screen and not the card so ANY color in the PICT is displayed on an appropriate monitor.
By managing TKshowPICT with very little scripting you can apply full color to your stacks with virtually NO overhead. This is the simplest way to color you stack or animiate PICTs.
For storing PICT resources in your stacks see the companion XCMD TKdoPICT.