Bleank

we need various kind of erasers!

There are many use of erasers.

We need various kind of erasers!

Do you use the shortcut [hold E] to put your current brush as an eraser? Isn't it enough?
If not, your suggestion is to have an eraser manager?

I think blackInc eraser remove picture too clearly.
Eraser leaves it`s trace behind it.
For exp.if we use eraser to erase pencil,pencil leaves it`s black color behinde it.
And I think we need eraser maneger.
It`s very convenient to use eraser manager.

We can draw pictures with 1 pencil and 1 eraser.

with the feature needed to support smudge tool ( or tool like that ) we will be able to do something you describe

It`s nice!