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A first step of displaying how we can update the look and feel dynamically using CSS variables. We wish that icons as an element was a reality because the only thing we cannot use the CSS variables for is to influence the sharpness etc. of the icons. They are inline SVGs so only size and color is possible.

I have opted for such an element, see discussion here: https://discourse.wicg.io/t/icon-semantic-html-element-icon/3915

Please join me in this quest :)