UI looks a little less cluttered in my opinion from current stable version, nice and clean, don't even see ad on the main gui screen now, Performance/Gaming Mode will check out more as time allows, Little slow opening the Gui on this test System though, can't seem to find the feedback button in the Gui to actually submit feedback from Avast Gui itself.
Account feature seems to be gone
Seems to have auto registered after clean install of Free version
Settings menu still same as old versions though/components area
Purple color not sure on really, at least it's darker than Orange and White of current stable ui, I kinda don't mind the darkness, as it matches my UI theme on the Windows 10 Systems, dark, though i'd prefer chooseable dark colors, Default, then chooseable blue/black or Dark Orange/Black with a little whiteness in menu area would work too in my eyes along those lines. Overall didn't see many bugs yet at least on my monitor, and system I am testing on currently.
One issue though with the Performance/Game Mode option Component, having it set for High Performance while gaming, won't that cause PC's or Laptops to overheat, say if your gaming for 3-5 hours straight. I personally run in balance power setting mode most of the time, so dynamic range of the CPU can be done, unless i'm doing things wrong all this time, first 8 core processor, so kept it in balance just like my old Quad Core