Hi Rob, thanks for reporting!
This is fixed via:
Canned replies will now use the normal highlight color. It would look like this on the dark theme:
And like this on the light theme:
The reason you don’t see the styles is because you need the element to be hovered for them to show in devtools.
You can simulate hovering the element by right clicking on it in the tree and go to force state then hover.
Like so:
You will then see the hover styles applied to the element, like so:
