How to change slicer splash screen and loading screen?

[lassoan (Andras Lasso)]

See the answer in this topic:

Change the splash screen of Slicer upon launch

I’ve fiddled around with editing the filepath in SlicerApp.arc as well as slicerlaunchersettings.ini to no avail. Could someone please help me? I have a custom .png file I’d like to change to.