Hi, everyone,

I'm building a site that can also be used by people with a physical handicap. Does P.B. a possibility or an addon with which I can change the contrast in the backend. I once heard that you can put a button on the backend under Helix, from which you can switch the presets. Unfortunately I didn't find anything about it. Maybe someone here has some advice? Actually, I only want to be able to switch the page to black and white then.

Thank you for your help - best regards Daniel