Maybe if you ask same thing 8 more times... Increasing transparency to same level as 'modern' menus may hurt readability and may require larger font / less contrasty elements, so there's a compromise required.
This is an OS bug related to dynamic DPI scaling. Rebooting or logging in again helps.
No. There's no scenario to affect this setting - except when you check it yourself. Please find when this happens exactly.
There is no way for StartAllBack to affect native search.
Which one? Preview pane in explorer is dark without SAB.
Yes, there is some redrawing issues in Beta/Dev.
StartIsBack does not change bluetooth icon design (StartAllBack does). Bluetooth icon may come from different stack. Built-in one is pretty much useless anyway
There are some reports on this, but no proper reproduction, so it's not going to be fixed. If you can arrange remote access to system with proper reproduction, please write to startisback@gmail.com