What are these icons/functions called? I want to add some to my Lovelace UI.
/Mathias
They are called Badges.
I guess you mean the actual icons, the supported icons can be found on this link Material design icons
Click the name of your chosen icon to copy the name. Notice that the copied text will be like “midi-Name” but you need to change it to “mdi:Name” without “” in lovelace in order for it to work