Toggle Button to switch between two themes

There was several conversations in 2019 to address color blindness with themes.

I have been scouring around the internet to see an example or instructions to set up two themes and toggle between them with a button or other concept.

The objective is to set theme A as a corportate or standard theme and theme B set as a color blind (CBLIS) theme.  Then assign them to a toggle button to swich between the two themes.

If there is any documenation or someone has some instructions on how to accomplish this.  I would be very interested on the solutions.

Thank you in advance,

Jeff Eschright