To V-KYR
As you have tried to investigate a bit more into images within Train controller (TC).....thank you for that, I will explain more as to what I am trying to use the built in image editor of TC:
It is not for images of my locos, for which I am fully conversant at importing Gif, Bmp Jpg files into, but trying to create bespoke button images for my switchboard graphic that actually controls the layout visually, which you will not (I think) be able to look into unless you are a TC user?
As to all the other replies........ I'm afraid content is all beyond my level of graphics know-how!!?? but feel free to carry on, some of it may 'stick'