Basic Texture Guides
Basic Modding Starting Kit by McDanceyPantsExtreme
Guide
How to Make an Alpha by Bizu
Guide
How to make a Mask by Bizu
Guide
Specular Map from a Diffuse
Guide
Editing the blue channel/Sheer by Koneko
Guide
Transferring Alphas in Gimp by Koneko
Guide
Diffuse Edits by Solona
Guide
Icon Recolor Quick Guide
Guide
Adjusting levels by decomps by Koneko
Guide
.DDS Exporting
Guide
Making a multi from a normal for gear by Koneko
Guide
Thank you to @Lise