This palette file is needed to get the texures looking right in the game. To apply the palette to an image in Paint Shop Pro choose "Colours/Load Palette..." (the short cut is Shift-O) and then open the palette with the "Nearest colour matching" -switch. After that load the same palette again, but with "Maintain indexes". Now the colours show up right in Glide. This isn't neccessary the case in software mode though, since some colours are regressive, and are swallowed by the colour of nebula and ambient lighting, whilst others are dominant colors that "shine through".