Properties must be defined as <'name'>. The background-blend-mode syntax is rendered as: <mix-blend-mode># where mix-blend-mode is a property. I'm not exactly sure what's wrong with the source that would cause it to be rendered without the surrounding quotes.
Properties must be defined as
<'name'>
. Thebackground-blend-mode
syntax is rendered as:<mix-blend-mode>#
wheremix-blend-mode
is a property. I'm not exactly sure what's wrong with the source that would cause it to be rendered without the surrounding quotes.https://github.com/w3c/fxtf-drafts/blob/3ee6470f08060bd235b51120648cc5b989db9cdd/compositing-2/Overview.bs#L293