Is it possible to invert colours in a gradient in Illustrator (CC 2014)?
When I try Edit > Edit Colours > Invert Colours on the box that I want inverted, it tells me "Colors Note: No invertible colors found."
I'd like to get this effect around my text, where the background is inverted. Is it maybe possible using a filter? I suspect I might have to move to Photoshop for that...