v31.0.0

Polypane 31
This release has a new canvas layout that lets you freely arrange panes on an infinite canvas. The elements panel now lets you filter styles, search the DOM tree, quickly navigate to and back from custom property definitions, and a new flex item explainer that can tell you exactly how flex items are sized and positioned.

Polypane 31 also has device presets for the latest iPhone devices, and runs on Chromium 155. full release notes

New

• New Canvas layout mode
• New Devices: Add new iPhone 18 Pro, iPhone 18 Pro Max, iPhone Duo and 5K device presets
• New Show CPU and memory usage per pane
• New Elements panel: Flex item visualisation
• New Elements panel: Go to custom property definition (and back!)
• New Screenshots: new "visible workspace" option
• New Crash overlay and experimental features toggle
• New Updated Chromium

Improved

• Improved Significantly smaller download size
• Improved Significant performance improvements for large pages
• Improved Screenshots: Support full range of text characters in overview screenshots
• Improved Screenshots: Much better screenshotting for panes that are naturally larger than the window (Thanks Thomas!)
• Improved Recording: Much faster processing of video
• Improved Recording: Now uses the native pointer
• Improved Panes: Allow zoom per pane instead of per origin
• Improved Panes: Height or width constrained panes now get a lock icon with explanation (Thanks Goh!)
• Improved Console panel: Improve performance for large log outputs (Thanks Adrian!)
• Improved Elements panel: Scroll badges get highlighted when you scroll in panes
• Improved Elements panel: Filter styles in style tab
• Improved Elements panel: Search in DOM tree
• Improved Meta panel: No longer recommends adding initial-scale=1 (Thanks Declan!)
• Improved Meta panel: Now shows llms.txt contents
• Improved Meta panel: Smarter and less frequent fetching of well-known URLs
• Improved Browse panel: Supports page zoom UI (Thanks Jay!)
• Improved Browse panel: Supports extension installation confirmation message
• Improved Outline panel: Explicitly choose to list or hide hidden elements in overviews (Thanks Eric!)
• Improved Outline panel: Image outline updates after attribute changes
• Improved Outline panel: The overlay labels are now better positioned and less intrusive
• Improved Outline panel: Smarter fallback when testing URLs that don't support HEAD
• Improved Outline panel: Clearer messages for URLs blocked due to Cloudflare challenges
• Improved Projects: You can now copy settings from existing projects (Thanks Christian!)
• Improved Address bar: Automatically clear 404 URLs from the suggestion history
• Improved Address bar: Better support for different esc states like other browsers (Thanks Mark!)
• Improved Peek: Now remains visible when hovering pseudo-elements
• Improved Command bar: Can now also toggle CSP, CSRF and web security
• Improved Command bar: Can now trigger all global screenshot actions
• Improved Camera icon in header now opens popup instead of creating overview screenshot
• Improved Removed the workspace tooltip (Thanks Mark!)
• Improved Accessibility state for many buttons is now more accurate

Fixes

• Fix Deleting sessions used by other projects would cause internal reloads (Thanks Chris!)
• Fix Screenshots: Split layout screenshots work again
• Fix Browse panel: Now handles application popups better
• Fix Debug tools: re-apply button did not always work
• Fix Debug tools: Color blindness filters did not get applied in 30.1
• Fix Portal: Injected CSS now handles nesting and media query order correctly
• Fix Console: Now shows errors originating from incorrectly typed commands
• Fix Elements panel: When editing before/after styles, the styles remain visible
• Fix Elements panel: Scrollbar for child nodes no longer overlaps dimensions (Thanks Rick!)
• Fix Outline panel: Overlays now clear when refetching data (Thanks Eric!)
• Fix Relaunching the app on Mac no longer requires a full quit (Thanks Jonathan!)