Change the colour of the Shutdown/Log-off screen?

Way back in 2015 when I clean installed Win10, during the setup process there was an option for choosing a color. I chose a hot magenta color which appears during startup/shutdown. (To be clear this is the color I see when the little dots are going...

I want to put picture when seeing windows shutting down as I fall sleep and the background is ugly. Here is how it looks like36028 However, now shutting down picture is not logon picture anymore so I cannot not use logon screen tweaker. Is...

As the title says, i want the log off screen colour to be different to my accent colour.

Is there any way to change the login screen colour while in high contrast? Everywhere I look it says no, but I've been using the high contrast setting ever since installing window 10, and the login screen used to be black. Then, one day, I click the...