41da4b0681
Using the opacity to control the label's visibility doesn't work correctly, as CapsLockWarning itself changes the opacity when the caps-lock state changes. This reverts commit 9f5f6aa9b2c8f5f055a3c3b6ff2270a79c1b5e69. https://gitlab.gnome.org/GNOME/gnome-shell/issues/2215