Hi again, pcpunk.
Upon experimentation, I find that Inkscape will also do the job you want, albeit in a slightly different fashion.
Here's the same image from before, still with the freehand, but also showing a highlighted ellipse.....and also a highlighted rectangle:-
Very simple to achieve, too.
1) Open Inkscape.
2) Open your image file.
3) Select your colour from the bottom bar.
4) Select the shape you want from the side bar.
5) Apply the shape you want in the desired location. Initially, it comes up as a solid colour, so right-click>Fill/Stroke.
6) In the window that comes up, set the opacity slider to where you want it, then 'OK'.
7) Move it to where you want it, and adjust proportions with the 'handles'.
8) Finally, 'File'>'Save As' in the desired format.
That's it! BTW, Puppy comes supplied as standard with InkscapeLite, which is a very cut-down version of this.....half the features are missing. Now I've installed this to try out a few things for you, I think I'm going to keep it; it seems to be a cross between PhotoScape and the GIMP. I like it!
Hope that helps.
Edited by Mike_Walsh, 16 September 2016 - 07:27 AM.
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