When there's no alpha channel, erasing uses the background color... but
that's not erasing, it's just painting another color. If background
color was an image setting it would make sense but, since you can change
the background color as easily as the foreground, that
background/foreground widget is just a 2 colors palette. It doesn't make
sense to call them "foreground" and "background".
Same for the pressure thing: just choose 2 colors you want to mix in a
tool setting.
In real life, you can't choose a "background color" while painting. You
chose it before and it stays the same during the whole work. If you want
to mix 2 colors, you just choose 2 colors. There's nothing like
"background" and "foreground" colors...
Olivier
Jeff a écrit :
Well, I can see two use cases (that bump into my face regularly in GIMP):
- in some cases, erasing uses the background color
- using a stylus and graphic tablet, you can use those two colors to
do stuff like mixing two colors on the fly, using pressure sensitivity
and other factors.
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