GitHub - iBrushC/animextras: An open source Blender addon that adds extra animation functionality.
Free Onion Skin Addon - BlenderNation
animation - Onion skin wont show unless I draw on the frame, and only shows the lines directly around it from previous frames and won't lower onion skin's opacity - Blender Stack
2D animation style like Darling in the Franxx using Blender (free animation software) – Page 3 – 3DCineTV
Grease Pencil Onion peel
Onion Skinning — Blender Manual
Slash - Add-on for Blender 2.8+ onion skinning animation workflow - Released Scripts and Themes - Blender Artists Community