Deselect with Esc key.
Sorry if I post too much in this section >_<
My request is being able to remove the selection box by pressing the Escape key.
The reason is that when I use the "Single Image Document" (which is basically a big tile) I always end up double clicking by accident (and selecting everything inside the tile) and have to zoom-out all the way and click outside the tile to be able to deselect(my canvas is kinda big 1000x1000px and my drawings are 24x24 so it takes a while). After the 100th time it's becoming a bit annoying =(