Seems nit-picky but here’s the convention that is used today.
Notice that the Plex Server is off and the Transmission is also off. Then why is the off color blue?
I’m guessing since they are off the icon is blue to show that the off state is on but in reality we look for blue when something is on and we take a second to see that the blue here is actually off.
I propose we make the off state it’s own color like a blue grey so that we can visually see at an instant all those things that are off and all the things that are on by color.
I didn’t see this posted elsewhere but if so point it out so I can vote.
Did you notice that the off state is not blue for you? (Because off is not blue)
I have to use the retain = true flag which give me these style switches. If I don’t HA gives me the “newer” ones and HA looks up the state topic for an “on” status which is not there and the switch turns back off. (thanks to @happyleaves for teaching me this)