Recent Colors, Colors Normalization, Color Auto-Palette
I'd love for 2 new swatches to become available, and a new feature. The first swatch would be "recent colors" and be auto-generated, showing similar colors grouped. It would have the option to auto-merge similar colors together, and also the ability to adjust 1 color and have it change instances of that color in the art. The second swatches would be an auto-generated group called a "palette/scheme" and this would make it easy to copy color for various css code
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Replacing a color is available through Recolor dialog.
Recent colors, like in Photoshop, is not. -
Daniel Hayes commented
Keep a color palette of the last 5 or 10 colors used to quickly choose color in your work rather than using the color picker.