Enhancement: let $hsv in pbr shader use alpha of $basetexture as mask

[koteromon]

Which component should be improved?

Render

Describe your suggestion

let $hsv in pbr shader use alpha of $basetexture as mask, the darker the alpha the less influence $hsv has on $basetexture

[JJL772]

This sounds similar to $blendtintbymraoalpha, which uses the MRAO alpha channel as a $color tint mask.

[SCell555]

$hsv_blend does already use MRAO alpha as mask.