CommonColorIsValid(color, options): color is ItemColor
Checks whether an item's color has a valid value that can be interpreted by the drawing
functions. Valid values are null, undefined, color strings, and an array containing any of the
aforementioned types.
Checks whether an item's color has a valid value that can be interpreted by the drawing functions. Valid values are null, undefined, color strings, and an array containing any of the aforementioned types.