How to place a different colour to the the back side (back face) of a face of a mesh. How to add a different material to the back of a plane.

Blender 2.93 is one of the best free software/freeware editing packages available for Windows, Linux & Apple. The best video editing software package for slow computers. Blender features a fully functional, production ready Non-Linear video editor called Video Sequence Editor or VSE for short. Blender’s VSE has many features including effects like Gaussian Blur, color grading, Fade and Wipe transitions, and other video transformations. Blender is a professional, free and open-source 3D computer graphics software toolset used for creating animated films, visual effects, art, 3D printed models, interactive 3D applications and video games. Blender’s features include 3D modeling, UV unwrapping, texturing, raster graphics editing, rigging and skinning, fluid and smoke simulation, particle simulation, soft body simulation, sculpting, animating, match moving, camera tracking, rendering, motion graphics, video editing and compositing. It also features an integrated game engine.