set-editor-parenthesis-colors sets the colors that are used for parenthesis coloring in an editor-pane in Lisp mode.
If colors is a non-nil list, each of its elements must be a valid color specification or a defined color alias. See The Color System for information about color specifications and aliases.
If it is called when CAPI is running,
set-editor-parenthesis-colors checks that the colors are valid. If it is called when CAPI is not running,
set-editor-parenthesis-colors does not check the colors, and a bad color will cause an error later. The colors have an effect only on coloring that happens after the call.
CAPI User Guide and Reference Manual (Windows version) - 3 Aug 2017