Colored outlines in a camera's manual-focus preview may be focus peaking: an assistive display that emphasizes edges. On documented models such as Canon's EOS R100, peaking is not recorded in the image. A saved photo without those outlines can therefore be working correctly. Check the actual file before asking an editor to restore or erase a color effect that existed only in the preview.
Identify what the outline is following
Peaking tends to follow detailed edges rather than tint an entire region like a creative color treatment. Its color and sensitivity can be adjustable. Canon describes this display as help for manual focusing and explicitly distinguishes it from recorded image data. Follow your camera's manual, since the display controls and available modes differ.
Do not use outline density as the only evidence that an important facial feature is sharp. Textured clothing can draw attention while the eye remains hard to judge in a small preview. Magnify the intended feature using the supported focus aid, then inspect the saved original. Preview assistance and final-detail verification serve related but different purposes.
Compare the display and the recorded file
This is a proposed check, not an experiment executed for this guide. Choose a stationary object with both a fine edge and a smooth area. Set focus manually using the camera's normal instructions. Note whether peaking is enabled, its displayed color, and the sensitivity level. Without changing focus, toggle only peaking and observe which preview elements change.
Save a photograph and open the actual original on a separate screen. Compare the same physical edge and smooth region. If the colored contour is absent but natural detail remains, the display/file distinction is consistent with peaking. If color is still present in the original, investigate a real scene edge, optical fringe, picture effect, or a captured screen rather than assuming peaking caused it.
Avoid uploading the preview as the source
A photograph of the camera monitor or a screenshot from a live-view application may include interface overlays, depending on how it was captured. That is different from copying the camera's actual saved photograph. Keep the source file and the display documentation separately, and verify which one is being selected for upload.
For a product tutorial, peaking can be part of an instructional screenshot, but label it as a focus aid so viewers do not mistake the outline for a feature of the subject. For a portrait style reference, use the clean original unless the visible interface itself is intentionally part of the creative brief. Do not spend a repair operation removing overlays from a screenshot when the unoverlaid photo is available.
When preparing an Imagild input, confirm filename, dimensions, and visible content in the selected file. Reopen the delivered image and check real edges and identity details, not whether the camera's colored assistance has been reproduced. These camera features are external capture controls and are not an implied Imagild focus-peaking interface.