I am hoping that we can use the same blue bar to show different states of the tool. Ottawahitech had suggested that we don't cover the View History and Edit tabs, and I think that makes sense. We should however make it sticky so that its visible even when the user has scrolled down.

For the animation we can use https://codepen.io/Volker_E/pen/yqNXMe

These look great!

Should the loading bar be a bit dimmed, though? It's something I see a lot in other places and usually gives a very quick indication that the UI isn't fully loaded yet even at a glance. Then when it is loaded, it's full bright blue or red.

What do you think, @Prtksxna ?

Good idea @Mooeypoo! I've updated the screenshots above.

This design work can be used in the implementation of T226760.