When publishing a translation, feedback (publishing, success, and error) is provided on top of an overlay. The transparency is intended to keeps the contents on top readable while providing some context.
However, when checking it live with a real device, the text behind the overlay was getting a bit in the way of reading the contents on top. Especially since this information appears for a brief period of time.
This ticket proposes to increase the opacity of the overlay to be 95% (it was 85% in the original spec)
The spec for a related ticket (T259511) also using an overlay has also been updated to keep it consistent.