When adding a new tag, is it possible to change the tag color directly in the "Add New Tag" window?

If no, can the "Color" button be added there?

I would be nice if when selecting initial tags they turned their colour in the open torrent options dialogue. I usually select one tag each from four different groups when adding a new torrent, it would be nice to see four colours and know I didn't mess up.

When you click to change a tag's colour you get a grid of default colours with spaces for 16 'custom colours' at the bottom. It would be nice if those custom colours were saved and were there again after a restart. I have two tag groups that get a new tag added every few weeks and I never remember the RGB values, it would be nice not to have to look at an old tag on order to make the new tag the same colour.