Validator Does Not Recognize CSS Custom Variables

[Eunomiac]

(I realize this issue has been raised before, but they appear to be locked to collaborators and lack any recent updates, so I hope it's alright that I post this anew)

Has there been any progress on this? I've seen this issue being raised periodically over most of the past decade, but I tried using the WC3 CSS Validation Service on my CSS and was flooded with a plethora of non-errors resulting from the validator's apparent inability to play nice with CSS variables.

First three reported errors:

The relevant lines of CSS referenced in the above excerpt:

• [62]   background-image: radial-gradient(var(--dotBright), var(--dotDark));
• [561] --bgH2: linear-gradient(270deg, var(--accentUp2), var(--accentUp4), var(--accentUp2));
• [642] --maxHeightInput: calc(var(--lineHeightBody) * 1.2);

I've been using CSS variables for years now, and I don't quite understand how a validator can be relevant for anything but the simplest applications of CSS without at least some acknowledgment of the existence of custom CSS variables?

[ylafon]

fixed by #316