ACP Widgets should open with a single click on the title bar. I know this is a small thing, but I find the current way widgets are opened very annoying both in terms of design and usability.
Currently, I can open a widget in one of two ways: Clicking the down arrow or Double-Clicking the title bar. I think the latter option needs to be changed to a single click. Double-Clicking is not intuitive in a browser, in fact I can't even think of any page where I've used a double-click. What's worse is, in mobile, double-tapping already has an expected function. (Usually Focus-Zoom, which is actually okay in this context, but that function is not universal.) The down arrow should stay because it adds context, like how bootstrap drop-downs have a down arrow, but can be clicked on anywhere in their box.
I am making this request because I only recently found out that the double-click open was even a possibility. In the greater scheme of things, I think you should avoid double-click features entirely unless absolutely necessary because I don't think you can count on that being the expected behavior of the user.