UoM in MainUI YAML rule

[rossko57]

Please go read the other thread. This is key

'oh-label-card' YAML background config

The widespread technique to deal with these units is to strip everything after the first space before parsing into a float: =Number.parseFloat(items.AqaraMQ_THPS3_TEMP.state.split(' ')[0]) I plan to add some utils functions in the expression scope to deal with this and other cases.