Color picker: Ability to update a single instance of a color

[ajashton]

The color picker in bones branch seems to update colors via search & replace over the whole stylesheet. If I have line-color:#f00; polygon-fill:#f00;, I should be able to update just one of the two colors using the color picker.

I'm not sure whether this should happen by changing the way the color picker updates colors or by providing a hex code in the picker interface to copy & paste.

We already have @variables for updating single colors in many places across the document. Do we need to duplicate this feature with the color palette?

[yhahn]

Should be doable by referencing the location of the color at parse time.

[nvkelso]

+1

[yhahn]

I'd still like to do this, just postponed for post 0.4.0 release. I looked at it a while back and it's a bit more challenging than I first thought.

[tpotter7]

Here is one for you Cory related to the color picker.