Node color change bugs and preset issues

Select multiple nodes, right-click on color, there are 10 color presets, one custom. When I select multiple nodes and customize one color, only one node will be changed, while the colors of the other selected nodes remain unchanged. I don't know if this is a bug

As for the color, can the custom color be saved as a preset, because the original 10 colors are not enough for classification. If there are any related plugins, please let me know. Thank you!