[Feature Request] Allow Frames insertion without Canvas Fill

[xiaoas]

In gif editor, when Inserting a Image into the sequences, a non-transparent canvas is required behind the image(which has a alpha channel), making the frame none-transparent.

Desired Behaviour: The "Canvas Fill" could be toggled off. Or the canvas fill color could be specified as transparent.

[NickeManarin]

That's something planned, along with the editor support for layers. The Insert window will be removed and the media will be able to be inserted freely.