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Commit 30a33948 authored by Jakob Stierhof's avatar Jakob Stierhof
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Revert rgb2hex changes

To many people used rgb2hex(r,g,b; str); relying on the
included '#'. So this is back, instead two functions hex2color and
color2hex are included that translate between a hex value (256 bit
color value) and a color string **without** including the leading
'#'.
parent 8e50c88b
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