I know there *must* be a way to have my pictures fill my iMac 24" screen as a default when opening.
I know about the F key and Maximize Screen, etc, but those just create a window that fills the screen and a smaller image with huge grey border around it.
You can keep hitting F key three times to cycle thru your predetermined workspace colors, which can be modified by CTRL+K interface tab. After you get black color, hit CTRL-0 for fit on screen, or CTRL-1 for 100% view. Alternatively, you can use CTRL + or CTRL - to get there.
Microsoft Word is also a very powerful application. Can you configure it to go directly to full screen mode when you open it up? I was wondering that too since last time I used Word was more than 15 years back.