Download patch
ref: 6544a8049f57f231de744df73403f68428bbbe1f parent: f1472b95fd6e0c724a2139461416b13628e0ee41 author: Sigrid Haflínudóttir <ftrvxmtrx@gmail.com> date: Mon Mar 23 16:27:45 EDT 2020
add a very stupid waveform drawing code as a start