Onion Skin

[Content placeholder: explain enabling onion references from timeline or reference tools.]

Reference controls

Drawings and Frames — [Content placeholder: describe reference source modes.]
Previous and next counts — [Content placeholder: describe visible reference range and linked counts.]
Opacity falloff — [Content placeholder: describe per-reference opacity and reset.]
Tint — [Content placeholder: describe tinted and original modes plus previous/next colours.]
Order — [Content placeholder: describe Behind and In Front rendering.]
Loop — [Content placeholder: describe looped onion references.]

Capture brief: show enabled onion references and expanded advanced controls.