Request: Color the "already saved" dots in the umap display

[arnicas]

When someone isn't using a color column or color by args, could there be an option to color the items "already selected and saved"? So you can sort of work your way thru sections you haven't visited yet?

[koaning]

This one could be tricky.

• Should these be preserved when the user hits the refresh button on the figure?
• Should the points not be removed?

[arnicas]

Don't remove them from the graph, but keep state somewhere internally to know if someone has saved a file containing those points. It can be a toggle on the display or something (like "highlight all saved points"). Yeah, keep the color on unless they untoggle it.