Halation

0:03 Halation · see the starting image
Halation adds a coloured spread around bright parts of the image.

0:08 Raise halation strength
Watch the boundary between the bright tabletop and darker objects.

0:15 Lower the highlight threshold
More bright areas contribute; compare the midtones as well as white edges.

0:22 Broaden the spread
Scatter changes the reach of the halo; it is different from strength.

0:30 Change dye transmission
Watch the colour of the halo while keeping its spread fixed.

0:37 Bypass only this tool
Compare the same photograph at the same zoom. The settings are retained.

0:43 Restore the adjustment
Judge the change before combining it with other tools.

0:50 Reset and compare the starting state
Only this tool returns to its starting state. Other edits stay.

0:56 Explore the controls in the written tool reference
OmaRaw