Is your feature request related to a problem? Please describe.

Currently, I can disable both pre-defined and custom color options for paragraphs by registering an empty array for the editor-color-palette support as well as adding the disable-custom-colors "support". However, this doesn't affect table blocks (since they use a separate color set).

Describe the solution you'd like

A way—either via theme supports, or hooking into the blocks.registerBlockType filter—to disable or replace the color options on table blocks.

Describe alternatives you've considered

Currently I can just hide the panel in CSS, but this obviously isn't an ideal solution.