Documentation maybe? Custom Icons on Switch. Representing changing inputs as On/Off icons

### Current Behavior

I want to take a value from a flow and pass it to the switch as an input and then have the custom on/off icons. For example if a lock state changes from locked to unlocked or vice versus.

The documentation shows a string input on msg.payload should initiate the icon change.

I cannot get it to work. Tried string "on" and "off". Tried boolean true/false. What input format and values would make the icon change?

### Expected Behavior

_No response_

### Steps To Reproduce


### Environment

- Dashboard version: 3.6.5
- Node-RED version: 4.0.5
- Node.js version:
- npm version:
- Platform/OS: Docker on Ubuntu
- Browser:

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate