Review feedback and agent suggestions want to live on the canvas, next to the frame they comment on — not in a side panel that loses spatial context. A floating, rotatable sticky note is the natural affordance, but bolting one onto a pan/zoom world (position, rotation, editable text) is fiddly to get right.

An absolutely-positioned react-fancy StickyNote placed in the canvas world. The wrapper owns top/left/right/bottom + rotate + color; the paper and text are react-fancy's primitive. Controlled text via value/onChange (with editable), or static children that override the text.

Drop <ArtBoard.Note top={40} left={60} rotate={-3} value={note} onChange={setNote} editable /> inside an <ArtBoard> for an editable note, or pass children for static content. Choose a color from the StickyNote presets or any CSS color.