How can i toggle dark/light themes via an iframe or other methods?

Development
1

Hi, I am developing chat application using rocket.chat with iframe.

I know there are some externalCommands to send events to the iframe but I can’t see how to change the themes through it.

Is there any APIs or other methods?

Thanks in advance.

2

sorry but it’s solved

3

Hi @ hyangki !Help me please. How do you do it? How can I toggle theme?