The need for this was from playing with Pesi’s watercolor brushes. He set them all to parallel mode.
I like it but try I also tried other modes, found that I liked using flat light and some others too. But it’s painstaking to individually switch them. Then I wanted to try some of my other watercolor brushes but they were all set to normal blend mode.
I’m trying a grayscale approach to watercoloring detailed here:
If I could make the grayscaled layer force brushes to be a desire blend mode it would help.
But I strongly sense they people might find other good uses for this as having ability to change multiple brushes blend mode on the fly without and still use them in normal blend on other layers would be powerful
Another use might be for people interested in color blending since some blend modes allow for it. And being able to try modes across brushes without it being tedious can lead to new discoveries