Blender 3D : Peindre une texture Addons – Rodicq Art.. No!
Substance to Blender Addon Free Material Library - YouTube
Texture based version of A.N.T - Released Scripts and Themes - Blender Artists Community
Addon] Texture library manager - Released Scripts and Themes - Blender Artists Community
Node-based texturing system design proposal (won't work, this an idea for a GPU based 2D texture authuring node editor) - Blender Development - Developer Forum