The problem of using a PIC0.PNG is that
@Crystal is not going to be able to display the text "
RetroArch CE v3.2" anymore (loaded from the TITLE inside the PARAM.SFO)
The order how XMB displays the stuff is the TITLE text first, and a fraction of second later it hides the TITLE text and displays the PIC0.PNG instead, so the TITLE is not much visible. I have not tryed this since many time ago so im not sure about the timings and if is posible to use some design trick in the images to take advantage of this effect
Initially i didnt wanted to use the PIC0.PNG because this way
@Crystal can write whatever he wants in the TITLE (as example, the suffix "vX.X" with the version number of the release)
If i create a PIC0.PNG with the text "
RetroArch CE" (matching the position of the TITLE text) is not going to have the suffix with the version because adding the version in it implyes to create a new PIC0.PNG for every new release
-------------------------
I think adding the "community edition" footer under the PSX-PLACE logo doesnt changes much the fact that we are adding the logo

In my last experiments i added a small PSX-PLACE logo in the screen bezel thought, it was just an alternative idea to add the logo in a "non-intrusive" way, but im not sure what to do with the logos to be honest, i will wait a bit before continuing working in it