Motion
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ReferenceEffectsMask and reveal

Colour key

A colour made see-through, as a green screen is keyed out.

Kind
Effect · Mask and reveal
Script name
colourKey

Settings

SettingKindStarts atRange and notes
Colourcolourcolour and alpha#00ff00ff–
Tolerancetolerancenumber30%0% to 100%How far from the colour is keyed out too
Softnesssoftnessnumber10%0% to 100%
What every effect has

Every effect in a stack can be turned off, has an Amount and can be limited to part of the layer with a mask. They're listed on the effects page, and Effects and masks shows how to use them.