Selecting colors by choosing a colored pencil doesn't work with El Captian (OS X 10.11)

OS X 10.11 El Capitan has created a problem we cannot fix, but we hope Apple will fix in an OS X update. The problem is with the new color pencil tab in the color picker, which replaces the crayons of earlier versions. The pencils tab looks weird and is almost unusable. But the other tabs work fine, so you'll need to use another method to pick colors. The problem arises because Prism 6 was written to work on older computers running Snow Leopard that cannot be updated. To do this, we use an older version of the Xcode development environment (the one that was current when Prism 6 was developed). All programs that use this older Xcode version will have the same issue with choosing colors using the color pencil tab until Apple fixes it.