Collapsible floating tool window
GIMP 2.10.12.
The aim is to maximize the working image window to the left by detaching the "Tool option" window and letting it floating BUT... COLLAPSIBLE. This floating window is more convenient since it is longer height wise thus permitting easier access to all the customizable options without scrolling up/down. Just clicking the tool icon should permit the toggle collapsing/expanding of its window.
Clic the icon to collapse :
Collapsed state window no 2 to icon (preferred) :
This feature can be exclusively attributed to the "Tool Options" floating window... or ANY tool floating window !
Edited by Andre Klapper