SoMoS

I know but it is quite unproductive. Imagine I want to adjust one color carefully, it is almost impossible.

I know this has been asked before but the answers given do not fulfill this requirement: Imagine I am using the magic wand to select a color that I want to replace with another color. When I go to the filler to change it I can't get a true representation about how it will look like because I cannot hide the magic wand selection lines, that increases the complexity of the operation. It is a common feature in other picture editors using something like Ctrl + H.