I am only just beginning to realise how useful a programme like 'paint' can be. I never could get on top of Coreldraw or Corelpaint , and don't have them on the computer any more.
But with the simple paint programme, I could draw in a missing tomato, some stripes, some shading. Magic. Some copy and paste .. it is fun!
I also realise the colour pick tool is great for assessing a shade or tone. If you have never done this... try selecting the colour of your teeth in a photograph ... across the whole smile. It is a revelation! And enough to send me to the dentist for whitening treatment.