Skinning Editor, 2D Animation

2D Animation Package Manager UI website

ArtStation - Unity 2D animations

Rig A 2D Animated Character In Unity - GameDev Academy

Skin Editing Guide - MassiveCraft

Unity-2D Character Animation-PUBG Chicken Dinner - General Development

An Introduction To Changing Costumes With Spine - Knowledge base - Cocos Forums

2DPsdImporter-6.0.7 – Changes in psd importer in Unity2021 and later and best practices for importing psb files – keysp

Unity 2D Animation, Part 2 – Skin Swapping, Unity Tutorial

Blog: Onion skinning available

Rigging a Sprite with the 2D Animation Package - Unity Learn

Need help with basic 2D bones and rigging : r/unity