invert blending mode
You have Normal, Multiply and Screen but there is no simple invert blending
transparency mode for layers or objects
I've seen it in other vector based programs and would love to see it in AI (and PSD)
eg
When a black ring (set to INVERT) overlaped a solid black circle, the portion of the ring that overlaps would turn white.
eg
When a Blue Circle overlapped a Yellow Circle the boolean area would turn green.
This was VERY popular years ago in design, both in the 1930s and again in the 1980s in early graphics software, but it seems to have vanished. I would LOVE this basic design technique returned!
Note: "Difference" seems to make a brown instead of a exact 100% inversion - black would turn white, and white to black. An EXACT opposite colour result
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This is strange. I'm not getting how a yellow circles 'inverts' the cyan one to a green. Green here is a result of multiplying yellow and green (if RGB). Inverted cyan (0-255-255) is red. Yellow — dark blue.
Difference is what you need:
https://graphicdesign.stackexchange.com/questions/103136/how-to-invert-text-color-with-respect-to-background-in-illustrator
To make in not brown make sure you don't use the CMYK color space, because blending math works a bit differently in CMYK.
