Update kitchen-sink.html #22
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We have screenshot tests set up within Google that catch visual regressions for our components, but there seem no screenshot tests for the visual appearance when a component is rendered on the server. The visual appearance for components on the server is still important as the pre-rendered components should match the hydrated/active components visually as much as possible to avoid content flashing when the page becomes hydrated. We have paid attention to this in the past (e.g. for the form-field) and regressed a couple of times. A screenshot test should help avoiding such issues. Additionally it makes it easier to see how components look pre-rendered while also potentially giving us a heads-up if the hydrated component appearance changes. Note that MDC also seems to pay attention to SSR appearance of their components (hence their concept of non-upgraded and upgraded variants/CSS).
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