missing from 'breakpoint groups' for Responsive Image Styhles

Something maybe wrong with Belgrade.breakpoints.yml

Moving and copying a simpler breakpoint from core stark them

mv belgrade.breakpoints.yml belgrade.breakpoints.yml-dist
cp ../../../core/themes/stark/stark.breakpoints.yml ./belgrade.breakpoints.yml

And after uninstall and reinstall I see a Belgrade breakpoint group.
Now reversing.

mv ./belgrade.breakpoints.yml ./belgrade.breakpoints.yml-stark
cp -p belgrade.breakpoints.yml-dist belgrade.breakpoints.yml

Uninstall Belgrade theme, then reinstall
and... Belgrade is not an option for breakpoint groups.

===
This seems to indicate something in the file Belgrade.breakpoints.yml is not working for my Drupal 11 setup.

Working on it.

In the belgrade.breakpoints.yml, the group name was assigned bootstrap. So thats why when finding belgrade under breakpoint group in responsive image styles, we were not able to find it instead it was shown as bootstrap. I have changed the group name to belgrade to avoid this type of confusion in future.

This change makes sense to me. Merging in. Thank you all.

Automatically closed - issue fixed for 2 weeks with no activity.