Re: [w3c/manifest] Add `installed` CSS media feature (PR #1218)

@marcoscaceres commented on this pull request.



> +      The <a href="#mf-installed">`installed`</a> media feature is orthogonal
+      to the <a data-xref-type="css-descriptor" data-xref-for=
+      "@media">`display-mode`</a> media feature. An [=installed web
+      application=] can use any [=display mode=], including [=display
+      mode/fullscreen=], [=display mode/standalone=], [=display
+      mode/minimal-ui=], or [=display mode/browser=]. The <a href=
+      "#mf-installed">`installed`</a> media feature answers "is this document
+      running as an installed application?" while `display-mode` answers "what
+      presentation mode is the browsing context using?"
+    </p>
+    <p data-cite="CSSOM-VIEW-1">
+      If the user agent transitions a [=browsing context=] into an
+      [=application context=] (for example, by [=applying=] a manifest after
+      the user [=installs=] the application while the document is already
+      open), the value of <a href="#mf-installed">`installed`</a> MUST update
+      accordingly and the user agent MUST [=fire an event=] named `change` at

need to queue a task here.... 

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Received on Thursday, 21 May 2026 22:22:11 UTC