Accent color is not used in title bars, start or task bar.

I found I could get the accent color on the File Explorer title bar ONLY if I use a theme. I don't like the themes colors offered and I prefer light mode, so I customized a preset theme and the background color/accent color I want. I use light mode, transparency on, show on border/title bars (shows title bar accent color until I shutdown/restart, then back to grey, shows accent color on borders), no show on start/taskbar (however, accent color shows), do not show dropshadow. The accent color is shown on Paint and Note Pad but no other apps or programs. However, once I shutdown laptop, the File Explorer title bar accent color reverts to grey. It doesn't apply to my profile. The issue is primarily specific to the File Explorer title bar accent color script/boolean configuration for user logon and retention of the settings under Personalization. Somewhere the if, ands and buts are messed up. I have played with the themes, background, and accent color settings extensively and this has been the only resolve I found. When I do not use a theme and only choose a background color/manual accent color, I don't initially see the accent color on the File Explorer title bar, it randomly appears later in the day (not every day) and reverts to grey at shutdown.

My resolve: Customized and saved a preset theme, put my laptop to sleep instead of shutdown each night in order to retain my preferred settings and not have to reconfigure at startup every morning.