Add-on: Material Slots Cleaner (Free) - BlenderNation
Delete ALL Materials in Blender | Illegal little trick - YouTube
rendering - How to delete unwanted material? - Blender Stack Exchange
How To Delete a Material in Blender - Artisticrender.com
Clean material slots that are not used. — Right-Click Select
How to delete unused materials in Blender - cgian.com
How To Delete a Material in Blender - Artisticrender.com
Material Library — Blender Manual
How to delete a material in Blender?
How to delete a material in Blender?
How to delete unused materials in Blender? - YouTube
How to delete all vertex groups in Blender - Quora
4) How to delete all unused materials from a Blender 2.8 file, the best time-saving tips - YouTube | Blender, Blender tutorial, Saving tips
Clean material slots that are not used. — Right-Click Select
texturing - How to remove unused textures and materials - Blender Stack Exchange
How To Remove Unused Materials In Blender | Two Techniques & A Quick Tip To Retain Your Undo History - YouTube
how do I deleted a material from the drop down list? - Basics & Interface - Blender Artists Community
scripting - Delete all materials that aren't assigned to a face? - Blender Stack Exchange
rendering - How to delete unwanted material? - Blender Stack Exchange
Blender - Reset all slots material to selected objects with python script
Assigning a Material — Blender Manual
How to delete unused materials in Blender - cgian.com
How can I remove all unused materials from a .blend file? - Blender Stack Exchange
edit mode - How to clean up a project - remove unused materials - Blender Stack Exchange
