@ JantjeBeton
I have a similar situation as you. We also want to use a free opensource code to do GUI automated test.
Did you solve your issue?
If yes, could you give some comments for the GUI automated test in your Ignition project?
I've searched in github that some open source tool such as pywinaumation, which support mouse and keyboard operation, but not sure it can catch the info of components such as the string or background color of a button in the HMI screen of Ignition.
BTW, I found a previous thread, it seems that IA uses the QF-Test, which is a commercial software.