AE // extend mask

MinMax effect - sometimes allow to remove black border on mask (ie normal AOV mask)
for better result add a remove color matting Effect just after

AE // working with exr

install fnord exr update from their website (AE not up to date)
color settings :

AE // unpremult (kind of)

Use the effect remove color matting (create an alpha before with shift channel or other if no alpha exist)

AE // fill alpha with solid color

Use the "solid composite" effect

AE // unpremult

use the channel combiner effect with solid alpha checker to unpremult (kind of)

AE // light wrap

or just a layer style


and set 0 to fill opacity to just have the effect

WINDOWS // SHELL - duplicate folder structure without files

XCOPY source destination  /T /E
https://windows.developpez.com/cours/ligne-commande/?page=page_9