It bothers me and I reported on this a long time ago.2) Once system restarts and re-establishes wifi connection - the notification msg has a barely visible, empty text box below the notification text "You're now connected to XYZ" ..
Specifically when a notification such as the wifi is connected etc. comes up, the small box below it that should say something like "don't show this again" is illegible with the default setup. Not sure ATM where that can be changed in Settings > Notifications, maybe by adjusting the theme.