I tried this, after two attempts, the devore visibly worked. It wasn't very obvious which disheartened me because of the length of time it took me to do. Doing this has reminded me how devore works and  now I want to use it again in my work as it is a simple and effective process to do.

I hand painted it on but I could possibly screen print it or block print with it to combine processes and methods??

Left top is a sample with no devore Right top and bottom has devore on some parts (brighter and more vivid)