Inquiry on HDR Textures (supported texture format)

[blank3times]

It seems on the dev branch when you added 'better HDR' you also added a lot of texture files (which I don't think were there before). If I were to want to use custom textures and make edits for compatibility, what is changed compared to vanilla to get the desired result with your shader?

Not an 'issue', I suppose. Thank you for your time!