Agreed - I too have been thinking the same for some time.
I agree, having the Active Brics in the Bric Bar labeled under (like the library) or using a “fast appearing, center top” tool-tip would benefit users, especially new ones considerably.
Having a greater number of Active Brics showing may be good as well for larger monitors, I don’t really mind that current aspect however of 8, even 10-12 would probably fit most monitors comfortably. I guess I would be more inclined to instead or also, fill the actual Bric Library window when it is open. Showing more from side to side, for less scrolling. But it’s my hope scrolling will eventually still be needed regardless as more Brics and features are added to the app.
I agree the open / close being cross corner is an issue (FYI: you can use the ESC key to close when open).
I would like to propose another idea. Cleaner and much more preferred from a UI standpoint is to have a basic tab on the top center that is clickable to toggle open / close. You could I guess instead maybe have the Bric Library open with rollover areas on the left and right side if a tab is undesired. Regardless which ever approach is used you could stop the Bric Library window at the top leaving space, so if rolled off it collapses (with rollover approach) or when the tab is clicked. But again, it would be better from a UI/UX standpoint just using a tab, click and it opens / closes.
Press “D” enter Bric Mode, Bric Bar appears with tab on top, click toggle open / close the Bric Library. With no effect if passed over so it does not interrupt the Bric section in the Bric Bar. Seems clean and effective.