replace stock textures with custom ones,
assign personalised head and suit textures for each Kerbal,
assign suits based on class and experience level,
remove IVA helmets in safe situations,
toggle between EVA suit and IVA suit without helmet in breathable atmosphere,
add reflections to parts and helmet visors,
generate missing mipmaps for PNG and JPEG model textures,
compress uncompressed textures from GameData/ to shrink textures in VRAM,
unload textures from RAM after KSP finishes loading to reduce RAM usage and
change bilinear texture filter to trilinear to improve mipmap quality.