The default Beats of Rage palette is very versatile, but it is not perfect for every mod. So you may want to look into the possibility of creating your own palette.
To replace the default palette with your own, follow these simple steps:
- Start your favourite image editing program, and open a large empty canvas (use RGB mode, a.k.a. true colour or 24/32 bit).
- Paste frames of all the (most relevant) sprites in your mod onto this canvas.
- Convert the image to indexed colour (i.e. to a paletted image) with 128 colours. The very first palette entry (index 0) will be used for transparency, so make sure it has an awful colour which does not appear in any of the images used in your mod.
- If your software supports the .ACT format, save the palette as data/bor.act. If it does not, save the image and use another program to convert the palette to .ACT format.
After creating the palette, make sure every sprite in your mod uses this new palette. Also, the first 128 colours of each background image must coincide with this palette.