a11y visual alert is inconsistent for server-side and client-side decorated windows
Arch Linux, mutter 3.30.2-2
There is a feature called "Visual Alerts" in a11y settings in gnome-control-center. If this feature is enabled, window or screen flashes when there is an alert.
By default this feature runs is "Flash the window title" mode. The reality is that "window title" flashes only for server-side decorated windows on X11. For client-decorated window, instead only titlebar, the whole window flashes.
This behavior is inconsistent. Also, name of default mode is incorrect. This is what I think:
- the whole window should flash always, even when it's server-side decorated on X11,
- this mode should be renamed from "Flash the window title" to "Flash the entire window".