Constant TEMPLATE 

const TEMPLATE: &str = "[SETTINGS]\r\n\
     sounds=\r\n\
     language=english\r\n\
     replaySpeeds=0.005 0.01 0.03 0.06 0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 4 6 8 10\r\n\
     enableGUI=1\r\n\
     showReplayHUD=1\r\n\
     muteReplayPacenotes=0\r\n";

The plugin’s documented defaults, written only when the file is absent and then edited like a shipped one.