Hi,
For example, I have composition
Layer2 [*Colorize Effect] [Blank] [Blank]
Layer1 [*Blank] [Clip1] [Clip2]
Effect on layer2 is triggered, Blank in layer1 is triggered too. Layer2 has some transition time.
When I trigger Clip1, I see original clip colours, while transition happening.
Looks like effect is applied based on alpha channel: when transition is on 50% of time, I see 50% of effect applied.