GlideN64 has come a long way in making the Kerber texture pack compatible with it. However, an issue that may be less talked about regarding this texture-pack is the odd behavior of the included Data and Option textures (those in the main menu in Mario Kart 64). Using either the
latest WIP builds of GlideN64 or the good old rice plugin with this texture pack on your preferred N64 emulator, it can be noted that the Data and Option alternatives in the main menu sometimes shows the higher-res textures and sometimes not. A closer inspection of the files included in the Kerber texture pack, shows those higher-res textures for Data and Options (hires_texture > MARIOKART64 > Menu):
L Option - First half
MARIOKART64#2E54990B#0#2_all.png
L Option - Second half
MARIOKART64#FF1C51A6#0#2_all.png
MARIOKART64#FF1CD976#0#2_all.png
R Data - First half
MARIOKART64#D36E3963#0#2_all.png
MARIOKART64#D074366B#0#2_all.png
R Data - Second half
MARIOKART64#9ABF19BB#0#2_all.png
MARIOKART64#9ABF20FB#0#2_all.png
While using the GlideN64 plugin to dump the textures of Mario Kart 64, I discovered that there are even more copies/different filenames for the very same textures in this game. While either entering the player select screen and returning to the main menu again, going back to the title screen and return to the main menu, entering a cup and exiting a cup or finishing a cup, some of the higher-res textures for the Data and Option menu are missing after the main menu screen is displayed again. There are simply not enough duplicates of the included textures in the Kerber texture pack as of now, and to fix this one must copy paste the four split-textures (each menu item is in this case two textures) a couple more times and give those copies the following names:
L Option - First half
MARIOKART64#1BDE8695#0#2_all.png
MARIOKART64#1D5A8811#0#2_all.png
MARIOKART64#2EDC999D#0#2_all.png
MARIOKART64#17D48695#0#2_all.png
L Option - Second half
MARIOKART64#FF1CBD06#0#2_all.png
MARIOKART64#FF1D44C6#0#2_all.png
R Data - First half
MARIOKART64#D0F036E9#0#2_all.png
MARIOKART64#D26C3865#0#2_all.png
R Data - Second half
MARIOKART64#9ABF24EB#0#2_all.png
MARIOKART64#9ABF31CB#0#2_all.png
After doing so; Mario Kart 64 (according to my brief testing) will not stop displaying the higher-res texture for the Data and Option menu items in the main menu, no matter what. Be sure to delete the generated cache file that the texture pack previous generated to make sure that this works (if you have texture caching enabled in your video plugin), so that GlideN64 can generate a new texture cache from the new split textures that you have now given enough proper filenames.