Originally posted by er1kksen I use it every once in a while to clean up complexions on portraits, with cloning and blurring and smudging. Also a little dodging and burning here and there. My only real complaint is the limited flexibility of the brush tools. At times I've wanted to, say, burn in a large area of sky, and I simply can't do that in a uniform fashion with the relatively tiny brushes available. Maybe I should learn to use layers but at some point I clicked out of the layers display box and I haven't seen it since.
In Windows, GIMP version 2.6, click on the menu heading Windows (between Filters and Help), and then you can open any of the dockable dialogs, or else the one labelled Layers, Channels, Paths, Undo.
For the brush size, in the main toolbox when a paintbrush or airbrush tool is selected, you can pick the brush size and style. Beneath that, there is a Scale slider. When you drag the scale slider over to 10x scale, a 19x19 paintbrush becomes 190 px by 190px.