A quick one for anyone cutting product photos: if your subject comes back with a faint colored outline (a halo) after background removal, it's usually not the model failing — it's blended pixels. Hair, fur, and glass mix subject and background colors, and the blend keeps the old background's tint when you move the cutout somewhere new.

Three fixes:

1. Use a precision mode before you remove — fast modes trade edge detail for speed.
2. Zoom in and clean the fringe with a small brush, not one big eraser stroke.
3. On white, a 1-pixel edge contraction usually removes the halo line without visibly changing the subject.

Self-check: drop the cutout on a mid-gray canvas. White hides light fringes; gray exposes them.

Full disclosure: CleanWhiteBG is my product (https://cleanwhitebg.com) — free, no signup, white-background replacement with a precision mode for exactly this. Weigh the tip accordingly.