SoftGlow

Builds a soft glow from selected bright regions with threshold, gain, blur size, clipping and per-channel color scaling.

Threshold decides which bright regions generate the glow, Gain sets their contribution and Glow Size controls the halo radius. If the whole frame starts glowing, fix the source selection before increasing or reducing Gain blindly.

Filter and channel controls shape the character of the halo, and unlinking X/Y allows stretched, anamorphic-style glow. Preserve alpha deliberately on text and graphics so the glow does not unintentionally harden or expand transparent edges.