How do I change one wall color without affecting the rest of the room?
Use Region Edit to outline just the wall you want to change. Everything outside the outline stays pixel-identical to your original render.
Use Region Edit: outline the wall you want to change, type the instruction, and MONA regenerates only the selected area. Everything outside the outline stays pixel-identical to your original, so the sofa, the floor, the light, and the other walls do not move.
Step by step
- Open your render and click Edit Region.
- Click around the wall to place the points of an outline, then press Enter to close it. You do not need to be surgical at the edges, just enclose the wall you want changed.
- Write the instruction, for example "paint this wall Benjamin Moore Hale Navy" or "change this wall to a warm white."
- Apply the edit. The result lands as a new version, so your original is never overwritten and you can compare or jump back at any time from the asset history.
The edit usually completes in under a minute.
Naming specific paint colors
You can reference real paint names and brands in the instruction. The more specific the instruction, the better: "matte finish, Benjamin Moore Hale Navy, keep the trim white" beats "make it blue."
Matching a specific material
Region Edit also accepts a reference image, either From Library or Upload, which is useful when you want the wall to match a specific wallpaper or material sample rather than a described color.
Frequently asked questions
Will the lighting update on the changed wall? Yes. The selected area is regenerated in context, so the new color picks up the room's lighting rather than looking pasted on.
Which plans include Region Edit? Region Edit is included with your MONA plan, and edits draw from your monthly AI credits.
Can I change two walls at once? Yes. Run two quick edits back to back, one per wall. Repeated region edits do not degrade the rest of the image.