Terminal: Add support for a separate color / image for padding area background

[Psychlist1972]

Summary of the new feature/enhancement

I'd like to be able to specify a separate background color, image, etc. for the area in the margin (padding) in the terminal window.

This uses a background image and padding value, but fails when resized to anything but the golden value of both.

In straight-up XAML, I'd do this by having a window-wide background color/image, and then specifying something different for the area inside the padding.

[Psychlist1972]

And yes, my use-case is ... unique :D

[DHowett-MSFT]

Well now that just _screams_ Atari. Puts me in mind of the 800XL

[Psychlist1972]

Commodore 64 in my case, but does apply to a lot of 8-bit systems. 🕶

[DHowett-MSFT]

Triaging as "not a terrible idea." 😁

[Psychlist1972]

If you want to take a moment and make it closer to the XAML approach, you have margin and padding. The meaning of each depends on how you're looking at it. You could consider having both where the margin would be what you allow to have a different color, and the padding would be any additional space then inside the terminal client/text area.