Congratulation on your new app. I Just installed it on my new, Onn 8, Android 9 tablet. Since no one that I am aware of has reported this, I will. I first noticed this on new versions of Lspeed on my older Nextbook Ares 8A, Android 6.0.1 tablets. It is also present on the New Onn 8 tablet and in the new install of the 5 beta on it. The bug is in what I think is called the nav bar. One can only vaguely see the back, home and recent buttons, to the point of almost not realizing that they are even there. I did not report this in the past on lspeed, because I thought someone else would as it is quite obvious on those devices, Android 6 and 9. I am not sure what version of lspeed that it appeared. Apparently it exists in BatteryGuru, also. What did you change that caused this? I never like, or use dark themes, so maybe this is is why you missed this bug. I guess I am a minority. Most say that light themes are hard on their eyes, I find dark themes hard to read, but I am 61 and use no line, progressive bifocals, so maybe that is the reason. I just tested and as I suspected, in dark mode the nav bar shows up just fine in both apps. I may be a minority, but i past versions of lspeed this was not a problem.