Hi,
Sorry for half rant, but you are long enough in that app creation business to learn how to make UI understandable and not currently confusing.
1. After version update I have some issues. I do not know which version Of have as industry standard "help" menu does not have a "about" submeniu showing the version.
2. After update I no longer see a button in lock screen to go to previous song (only pause and next). Checking the settings, it is impossible to find (without reading half of this forum), how to make that button appear. I believe there was the same issue with older version and I had to find in forums how to enable it. But now even in logical place "Settings" - "Lock Screen" there is nothing for that.
Please use industry standard ways and do not reinvent the bicycle where not necessary.
P.s. I was talking about the default lock screen widget and not the custom one which needs to be enabled to overwrite over apps where it allows to use full Poweramp features without unlocking the device. The default lock screen widget just needs to show "previous" button next to "pause" and "forward". And pls do not tell that's because of limited space - find the space!