Sculpt toolbar colors

Here's a proposal for perhaps better colors for Sculpt tooldbar.

Currently in the toolbar:

1. Grey ellipse is too bright and it's fighting against of the tool's color coded attribute (blue, red, yellow) in "attention hierarchy".
2. The color coded attribute of the tool uses black strokes, they could be colored with the same code color but darker.
3. Black stroke of the whole toolbar is perhaps extra information
4. Dot under the tool would tell user if it's currently "Adding" or "Subtracting"

Or with minus & plus symbols