Hi, I see a posibility of improve working with Greenshot.
Every time I want to change a color of any object, the "color picker" window appears in the same place - in the upper left corner of my screen. When I work with large screen and I have Greenshot editor in the lower right corner, it makes a problem to go with mousepointer there and back between two opposite corners every time I change a color.
My proposal is to make the location of "color picker" window dependent of the Greenshot editor window location. Attached you can see the picture of my screen. In red color marked current location for "color picker" window, and in green color desired location for "color picker" window.