fix Snacks preview appearance, allow customizing, tweak few examples #4754
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Why
So far, the Snack embedded element theme was coupled with preview device appearance which in some cases lead to readability problems in dark mode.
Refs:
Should address issues bring up in:
How
Add support for
deviceAppearance
query param, set it by default to'light'
, but allow customization on case-by-case base.In the process, I have also updated few examples, to make sure that they display and work correctly on mobile previews.
Preview