When adding a contact on the Galaxy Nexus (Android 4.3), the Bluetooth diagram isn't shown. Log output:

12-15 15:51:10.740 5971-5971/org.briarproject W/OpenGLRenderer: Bitmap too large to be uploaded into a texture (2162x760, max=2048x2048)

Funnily enough this doesn't happen on much older and less capable devices.

The image should be scaled appropriately for each class of screen (mdpi, hdpi, etc).