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Use annotations to show what you want changed

Mark the exact area so Oona understands what to change and what to leave alone.

Updated 2026-05-073 min read

Use this guide when you want to point at a specific part of an image instead of describing it in text, or when text descriptions have not been precise enough.

What annotations are for

  • Mark a small area that is hard to describe.
  • Disambiguate between similar objects in one photo.
  • Protect an object by marking it clearly as “keep”.
  • Combine a mark with a short instruction (“change this to warmer wood”).

How to use annotations

Open the annotation mode for the image, mark the area, then send a short message describing what you want done with the marked region.

  • “Change this area to a warmer tone.”
  • “Replace the highlighted piece with something lighter.”
  • “Keep this corner exactly as it is.”

If you do not have the tool

Describe location using relative position (“bottom-left corner”), nearby objects, and one unique detail. If needed, upload a screenshot with a rough highlight drawn in another app.

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Use annotations to show what you want changed · Oona Support