[chrissix666]

Okay. Do you happen to know what the correct aspect ratio is? I'm unable to decompile the texture.xbt file with the Kodi texture tool to check the other mpaa images. The output folder remains empty on my system.

That is really annoying. You have to do it somehow.
I can always decompile on my side but the compile is then difficult again on my side.

But i can show you a way you have not to compile again once decompiled.
Just open and edit the addon.xml, change compile="true" to compile="false"
In resources folder delete the textures.xbt and paste the decompiled folders/files into it.

There is no disadvantage, the advantage is you can modify everything at any time without having to decompile and compile everything again. (Which does not work most of the time)
I hope the xbt combile format for resource addons will disappear in the future -  really unnecessary!