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I have noticed that sometime in the last couple updates the pop-up windows which were looking good around JS 3 are now off again. You can even see this in your new template demo:
Clicking the toolbar to view your inbox messages brings up a popup that doesn't show the SHOW ALL button, you have to scroll to see it, before it would open big enough to show that button. The notifications pop-up is also bad as it opens small and you have to scroll to see the SHOW ALL button.
I notice on mobile they are also affected and open off the the left side as well instead of being centered.