Convert between quake palette files and png, to create new cool palettes for quake
Open up palette.png in your favourite image editor, and modify it however you'd like. Change the constrast/saturation etc for cool effects and then save it. (You can save it as any file)
In the commandline you can type qpalconvert my_new_palette.png and it will output palette.lmp, which can be used in your quake mod. Place it in the folder my_quake_mod/gfx/ folder.
On windows, you can also just drag and drop your image onto qpalconvert.exe and it will work without having to use the commandline.
Requires python 3, and PIL imaging library
python qpalconvert.py palette.lmp
Converts a palette file from quake (found in id1/PAK0.pak/gfx) to a PNG image representation of the palette
python qpalconvert.py palette.png
Converts a 16x16 image file into a quake palette lump.
To use the new palette in your mod, place it in your mod folder at your_mod/gfx/palette.lmp