Tufte 1.16.3

Fixes for three user-reported issues — pair this with Tufte Suite 1.0.2, which carries the plugin side.

• Obsidian's Release Notes tab is readable again. The theme's reading-pane layout — the 30% marginalia gutter and the 55rem measure — was unscoped and leaked into every markdown surface. Outside a real file pane there is no tufte-pane container, so the gutter's cqi units fell back to viewport units and reserved ~30% of the window as phantom margin inside the Release Notes column, crushing it to a sliver. Those rules are now scoped to .markdown-reading-view; Release Notes, hover popovers, and modals keep Obsidian's native geometry while still inheriting Tufte type.
• Print keeps up with the caption fix. Tufte Suite 1.0.2 moves the default figure's margin caption from a grid column to the sidenotes' float recipe (ending the sidenote/caption overlap and the left-edge mismatch); this theme's print block now converts that float's pane-proportional geometry to percentages for PDF export, exactly as it already did for sidenotes.

With the old theme + new Suite (or vice versa) nothing breaks on screen, but margin captions in PDF export only get correct geometry with both updated.

Install/update: Settings → Appearance → Themes, or drop theme.css + manifest.json into .obsidian/themes/Tufte/.