Thank you, rich2005,
My apologies for taking this long to respond and, so, seeming not to appreciate your useful advice. Unfortunately, after I made that post I was tied up for quite a few weeks with various other fairly urgent concerns. I will now endeavour to follow your example on my own copy of that .xcf file.
For future difficulties I am highly likely to encounter, as I try to use other features of Gimp, I would like to be able to record my efforts as you have recorded that demonstration. Could you tell me what open-source software I should use to do this?
My apologies for taking this long to respond and, so, seeming not to appreciate your useful advice. Unfortunately, after I made that post I was tied up for quite a few weeks with various other fairly urgent concerns. I will now endeavour to follow your example on my own copy of that .xcf file.
For future difficulties I am highly likely to encounter, as I try to use other features of Gimp, I would like to be able to record my efforts as you have recorded that demonstration. Could you tell me what open-source software I should use to do this?