Make libcanberra-gtk3 optional
trivial: Load the SVG figures as resources
trivial: Fix up two more _cleanup_free warnings
Rework the display analysis UI to the new design from Lapo
trivial: Allow libusb1 to write more data than specified
Support the ColorHug2 in the example code
trivial: Add mingw compilation steps to the examples
Do not use deprecated libgusb API