optimised deployable ao textures where applicable. 245 of them, most carrying sources far bigger than they ship at and storing a single channel as rgb.
resized to existing cap 126 files
rgb -> 8-bit grey 148 files
halved 2k -> 1k 47 files
186.6 MB -> 92.6 MB vram
ao is sampled from the green channel so rgb storage was never doing anything.