BG Images, Site Layout Border

This is feedback from testing Responsive 3.15.3 via a Child theme created with 3.13.15.

(1) Background Image
The background image only shows when the site is customized to use the “Default” Site Layout.

I chose to play with the Container Width to made a wider container (1200px) and tested the different Site Layout options.

Only the Default layout shows the background image. The other two options override the background image outside the boundaries of the narrower Container when viewed with a large screen display for these tests.

I assume this is an accepted feature that would need personal workaround if someone wanted a visible BG image outside the Container when selecting Full Width layouts, or making the BG image part of those Layouts via CCS patches?

(2) I’ve noticed a small issue with the side margin when viewed in smaller screen selections.

If I keep the Container at 1200px and Site Layout: Default, then use Customizer to test for Tablet and Smartphone screen sizes the Container shows a margin on the left side of the screen but nothing on the right.

Normally the Container shrinks to give a small margin on both sides.

The page I need help with: [log in to see the link]