My refactoring of the UI is nearly complete, so I've started adding new features to PiTiVi. Today I got the Unlink/Relink features working. Normally audio and video clips are linked together. Now you can unlink them and manipulate them separately. Relink allows you to reconnect a source to it's mate if you Unlinked them by accident. I have a couple more features planned for the near future, including: "collapse", which eliminates gaps in the selection; and select-before and -after, which select all sources right or left of the currently selected source(s).
This means we'll need some artwork to help represent these features. I'm using stock icons for now, and as you can see, it's not the best fit. The razor tool is easily mistaken for the "cut to clipboard" command, and the it's not at all clear what on earth "connect" and "disconnect" do. Anyone interested?
Master List of Icons
Other things on the horizon include thumbnail previews for sources, and audio waveforms for audio files. After I get through that, I'll start working on a keyframe-curve for audio-volume.