Bug #1010: videotestsrc window when audio selected
Bug #1228: When answerer sends its answer and the offerer doesn't send anymore messages, Scenic should tell the user that the offerer is probably on a different network
Bug #1229: The preview window is called "Milhouse". Should be "sending to London", or so
Bug #1230: custom size number widgets are not sensitive after streaming even if custom size option is chosen
Bug #1231: custom size for sent video test source dones't work at all
Feature #1238: Allow shared video from receiving stream in Scenic GUI