Pixel Ghost: Design Matcher adds a Designs library and a dropdown in the native WordPress admin toolbar.
Preview controls require a visible WordPress admin toolbar and permission to edit posts. Shared comments additionally require permission to edit the current post or page. Archives and the latest-posts homepage have no single post ID and do not support comments.
Design files load from the URL you choose, which may contact an external host. Comments and author IDs are stored in the local WordPress post metadata. Preview preferences are stored in the browser tab; closing the tab normally ends that session. No comment text is stored in sessionStorage.
PDF rendering depends on the browser. Use images for precise visual comparison. Marker positions follow page coordinates and may need reinterpretation after substantial responsive layout or content changes.