Translations:Archive:Kdenlive/Manual/Effects/Alpha manipulation/4/en

However, in version 17.04 of kdenlive an option was introduced that automatically composited two tracks that have Alpha channel data in them. You turn this feature on by selecting either High Quality or or Preview from the Compositing Option drop down found under the Project Bin. Select None from this drop down to turn this feature off.

This image shows two video tracks with no transition. The project monitor shows how the upper track takes precedence when no transition is in play.