On 8.1, you can use the tile on the notification area to enable/disable fooView any time to solve the floating overlap layer issue.
For keyboad overlap issue, you can edit the icon position from the settings or set hide list on the keyboard to other styles.
Yes I figured it out.
Just love the option to set height for the line it fixes all my frustration with miss clicks! I wish to be full screen long
For now I'm very pleased with the 500% height line, no problems in any app never made a miss click , but when I open keyboard the "half circle" appear. Can I hide it and stick with the line?
Great update!
P. S: in stock android 7 the screen recording was kinda lagging with visual artifacts, in Android 8 it's perfect but internal audio doesn't work at all. Yes I did installed fooView as system app(as should be). Maybe it's my rom not compatible or it's just Google fault making it impossible?