Canvas mode: double-click image to enter BananaTape-style editor

[lidge-jun]

Source

User feedback from 2026-04-28.

Reference inspiration:
https://github.com/NomaDamas/bananatape

Problem

Central image click-to-zoom is not enough as a long-term direction. The desired interaction is to double-click an image and enter a canvas/editor mode where advanced users can inspect/edit/compose more directly.

Requested behavior

Create a separate canvas mode issue inspired by BananaTape-style image canvas UX.

Initial concept:

• Double-click a central image to open canvas mode.
• General users experience it as an enlarged/original view.
• Advanced users can later use canvas/edit tools in that mode.
• Keep this separate from the simple gallery keyboard/delete shortcuts.

Acceptance criteria for planning

• Research BananaTape UX and decide what is appropriate for ima2-gen.
• Define whether canvas mode is a new uiMode, modal, or full workspace.
• Decide how it coexists with Node mode and Card News mode.
• No implementation until a separate PRD is approved.

[lidge-jun]

Canvas Mode follow-up work has been split into separate issues so #22 can remain the parent tracker instead of growing indefinitely.

Follow-up issues:

• Canvas mode: export annotations as SVG/vector package #27 Canvas mode: export annotations as SVG/vector package
• Canvas mode: export current canvas composition to PPTX #28 Canvas mode: export current canvas composition to PPTX
• Canvas mode: alpha-aware transparent canvas controls #29 Canvas mode: alpha-aware transparent canvas controls
• Canvas mode: annotation color palette and stroke width controls #30 Canvas mode: annotation color palette and stroke width controls
• Canvas mode: verify and enable provider-backed masked edit #31 Canvas mode: verify and enable provider-backed masked edit
• Canvas mode: separate viewport pan from object selection #32 Canvas mode: separate viewport pan from object selection

Local planning docs were also updated under devlog/_plan/0.24-canvas-mode/ with the issue split and recommended next phase order.