Set browser prefers-color-scheme to test apps in dark mode

[EmaSuriano]

Summary

I started using the CLI command via Github Actions, like it's described in the official docs:

      - run: npm install --save-dev @percy/cli
      - run: npx percy snapshot _site/ # or any directory such as public/
        env:
          PERCY_TOKEN: $

And everything works as expected, nevertheless in my project I'm currently using tailwind for styling with the feature of Dark mode. Depending on the prefers-color-scheme the app changes the styles in order to follow dark:

I was navigating the documentation and Github Issues, but couldn't find any relevant option in order to set this option into the browser before the snapshots are generated.

[itsjwala]

Hey @EmaSuriano 👋

Please follow https://www.browserstack.com/docs/percy/take-percy-snapshots/snapshots-via-cli

if you still have queries please reach us via support.