Feature Request: Better Frame Customising

FilmPack allows to add frames to images within DPL.

Frames can be customised to a certain (tiny) degree.
Frames can’t be added on top of each other too.

Please make frame widths more flexible. Example: I’d like a white frame with a narrow black line on the inside. I cannot influence the white/Black proportions though.

Please make frames stackable. Example: For the above use case, I could add a black frame outside plus a white frame inside and use the sliders in order to get the ratio I like.

The option to load a personal frame, please !