Re: [fxtf-drafts] [filter-effects-1] What is the visual effect of filter() on the document element?

> I used white for two reasons:
> 1. The de facto state of browsers is that they use a white background
> 2. To make the explainer easier to read, so white is also a placeholder

I don't think saying that it composites against opaque white is any simpler than saying it just does against "the backdrop", with a definition that the backdrop is whatever the UA wants it to be (typically transparent for iframes and opaque white for root-level documents, but can be anything). Given that all you're doing with it is compositing over it, the identity of it doesn't matter, and being unnecessarily specific makes it *harder* to read when you actually know the details. ^_^

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Received on Wednesday, 12 September 2018 17:02:18 UTC