Entry
R2 = window handle
R3 = icon handle
R4 = foreground colour (0-15 or -1 to keep the same)
R5 = background colour (0-15 or -1 to keep the same)
Exit
R0 = old foreground colour + old background colour * 16
Changes the specified icons colour(s). If there is no change then the icon is not updated (ie. it will not flicker). This call will work for anti-aliased fonts, but the icon must have an F validation command, as the Wimp needs this to specify the icons colour.
Provided by Icons
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