This shader was developed for avatar-based services (e.g. VRChat) and has the following features.
Easy (one-click setting from presets & saving your own presets, colour change & texture export with colour correction function).
Beautiful (anti-whiteout, underwater transparency prevention, anti-aliased shading).
Lightweight (editor automatically rewrites shaders and switches functions on and off).
Long-term, usable in various environments (Unity 2017-2021, BRP/LWRP/URP/HDRP)

● Compatible with all Unity lighting and close to StandardShader brightness

Main functions.
Main colour x3 layers (decals, layer masks, Gif animation, normal, additive, multiply and screen compositing supported)
Colour correction, UV scrolling & rotation
Highly flexible shadows (3 shadows, SSS, ambient light compositing, AO mask to adjust shadow ease)
Luminance x 2 layers (animation, masking, blinking, colour change over time, parallax support).
2 layers of normal maps.
Mirror reflections
Matte caps (Z-axis rotation cancellation, supports normal, additive, multiplicative and screen compositing)
Rim lights
Outline (colour specification by texture, mask, thickness correction according to vertex colour and distance)
Furs, refraction
Distance clipping canceller (does not disappear if you get too close)
Distance fade (colour changes according to distance)
AudioLink (animates material in sync with sound in supported VRChat worlds).
Tessellation (automatic high poly conversion, high load, suitable for video production).
Mesh encryption (requires separate AvatarEncryption installation).

Features that are not commonly used are disabled by default, so please switch on the required features from the shader settings.
More detailed specifications can be found in the documentation.