yes, the xml you can change, but you will also have to put all the images into \windows. So unless you replaced every image and wrote it to windows, then your new xml want find all the images as some it needs will only be in the ManilaGFX folder. All 227 images aren't in that folder, but most are. I'll attach the htchomesettings.xml for the latest update and you can see which images are in the ManillaGFX folder so you will know which ones have to be written into \windows in order for your xml to find them.
The proof is in this xml that I just removed from the new update.