Hue shift slider

[GoogleCodeExporter]

Just an idea, not sure if mentioned before

Hue shift slider in palette editor that would work on multiple selected 
colours, similar to this:
http://www.pixelfor.me/crc/

That app is not too good, but having the hue shift slider would speed up 
creating palette variations

This one gives much nicer results:
http://iquilezles.org/www/articles/palettes/palettes.htm

The slider would work similar to regular HSV or RGB sliders in the sense that 
it'd affect multiple colours. If applied to a single colour it'd probably work 
like regular hue slider

Original issue reported on code.google.com by ilija.melentijevic on 3 Jun 2015 at 8:28