Preview / + toggle background

In version 6 Preview, is there a way to toggle and sample the appearance in both, universal background themes? I want to use image-transparency tailored for the www, regardless of the viewer’s backgound color theme, day or night, on individual PCs.

Using two browsers, (one set to light vs one set to dark), with app switcher looses settings and a dedicated contrast-viewer would help.

Hi @boatkinson, sorry but I’m unclear on what you mean with “universal background themes”?

There is no viewer background color theme that affects a website.

But you can configure your website to respond to light/dark color mode, via the color settings, and even make an element visible based on the current color theme.