I have fancy product designer plugin for wordpress. I want to customise the way the colorpicker works for svgs. Currently it works as attached (currentpicker) - where it shows color for every element and every element must be changed individually. Instead, it should just show colors currently used. In this example it should only show 2 colors, the dark blue and the light color once. If light color is changed then all elements with this color would change.
This is a small project and bids shouldn't exceed £50.