Add secondary CSS class based on the 'warning_level' field reported by UPower over D-Bus. This makes it possible to add custom styling when the battery is near empty.  | 
			||
|---|---|---|
| .. | ||
| upower.hpp | ||
| upower_tooltip.hpp | ||
				
					
						
							Add secondary CSS class based on the 'warning_level' field reported by UPower over D-Bus. This makes it possible to add custom styling when the battery is near empty.  | 
			||
|---|---|---|
| .. | ||
| upower.hpp | ||
| upower_tooltip.hpp | ||