What I enhence is pixel labels are not editable once I choose another label or save them.
For example, if i use it to label 3 objs with intersected erea.
When I finish the obj1 and 2, I'm labeling the 3rd one, but i make some mistake on intersected erea, i cannot edit the 2nd label without make affect on the intersected erea(eraser tool roles in global).
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