I see what you mean. @triantares Did the LightDM-GTK-Greeter-Settings thing and it works well enough. The top menu bar is still there though I can delete it. I used the same back, but I used the TOS Delta (yeah, I know, anachronism). Would like to know how to create my own actuators/buttons for Login, Restart and Shut Down.
@endarkenment Did download SLim but don't know how to invoke it from the CLI.
Next thing is to change the boot screen and shutdown screen. Do the screens have to be animated .svg files? Not daunting but would appreciate ANY advice. If this needs to get bumped into a new topic, please do so. Thanks again.