You will need a program such as
GIMP (free) or Photoshop to edit the colour. To change the .material file you will need Notepad or what I prefer,
Notepad++ 
Go to your Feralheart>> Media>> Objects>> Misc folder, copy and paste the
crystal.material file and the
crystalGlow.jpg image. Rename the pasted image to crystalGlow2 for example, feel free to rename the copied and pasted .material file as well.
Using Notepad or Notepad++, open the crystalGlow2.material file with the Notepad program. You will have to Right-Click>> Open/Open With>> Notepad. Or open Notepad++ and go File>>Open and search for the .material file to open it.
You will see this:
material crystalMat
{
technique
{
pass
{
cull_hardware none
cull_software none
emissive 1 1 1
texture_unit
{
env_map spherical
texture crystalTex.jpg
}
}
}
} ^ Do not need to focus on that at the moment.
material
crystalGlowMat{
technique
{
pass
{
scene_blend add
depth_write off
fog_override true
texture_unit
{
texture
crystalGlow.jpg tex_address_mode clamp
wave_xform scale_x sine 0.9 0.5 0 0.1
wave_xform scale_y sine 0.9 0.5 0 0.1
}
}
}
}
This is the name you type in Object Maker to load the glow. You will need to change the name, add a 2 at the end or call it "RedcrystalGlowMat" for exampleThis is the image name. Remember what you renamed the image as? That's what you need to type in, make sure you leave that .jpg at the end. Very important c;When you're done go File>>Save and now we'll head to editing the image.
Open the image in GIMP or Photoshop. Looking at the Layers window (CTRL+L in GIMP. On the right hand side Photoshop) you will need to add a new layer. The icon looks like a piece of paper with a folded corner. Once you've done that change the layer type from Normal to either "Multiply" or "Overlay" and start colouring in the image.
When you've done that make sure you save it as a .jpg image and that it matches the name in your .material file. Now that you have your new .material file and new image, you can load it in Feralheart!
Object Maker>> Effect Maker>> Billboard "crystalGlowMat2" and you should see it.
This method works for pretty much everything when it comes to Feralheart retexturing, you can change the crystal colour as well by editing the image and the crystalMat. Hope this helps, if you have any questions let me know
