``` "Lagrange" written in all caps
           __   __             __   ___
|     /\  / _` |__)  /\  |\ | / _` |__
|___ /~~\ \__> |  \ /~~\ | \| \__> |___

```
# Release notes

## 1.3

* Added a language translation feature. It uses a self-hosted LibreTranslate instance running on `xlt.skyjake.fi`.
* Only one instance of Lagrange is allowed to run per user directory. This prevents instances from overwriting each other's data.
* A server certificate can also be verified by Certificate Authorities. When "CA file" and/or "CA path" are set in Preferences, CA verification will mark a certificate as trusted.
* Added "about:about" that lists all the available "about:" pages.
* Added option to word wrap plain text files. This is on by default because there is no horizontal scrolling for plain text.
* Gopher: Handling the 'h' line type.
* Large images are downscaled to an appropriate size for presentation.
* Improved font glyph caching to avoid stuttering during scrolling. All required glyphs are cached after a page load finishes. This allows more efficient copying of glyphs as the operations can be batched.
* Improved event handling to support touchscreens on any platform.
* Fixed use of multiple search terms for quick lookup.
* Fixed handling of IDNs when the user sets a server certificate as trusted via the UI.
* Fixed handling of multiple feeds having an entry with the same URL.
* Fixed percent-decoding of URLs on the command line and coming in via system URL handlers.

User interface:
* Added unread feed entry count to the sidebar.
* Default page scroll keybindings changed: PageUp/Down scroll a whole page, and Space/Shift+Space scrolls half a page. If you're changed these bindings, you'll need to rebind them.
* UI scaling factor is applied immediately when closing Preferences. Restarting is no longer necessary.
* Window scaling changes automatically when moving window to a different display.
* Added a context menu for toggling sidebars. The menu appears when right-clicking on the navbar or the sidebar tab buttons.
* Added a cut/copy/paste context menu to input fields.
* Reload button moved into the URL field.
* Added an "Import..." button to the empty Identities sidebar.
* Narrow URL input fields will not display the default "gemini" scheme.
* Keyboard modifiers can be customized using the `modmap.txt` configuration file.
* Caps Lock can be used as a modifier key.
* Fixed background activity indicators overlapping each other.
* Fixed minor blending artifacts with the current heading shown on the right side of the page.

Visual design:
* The icon of Gemini links to the same domain can be overridden with the Emoji or other pictograph at the start of the link label. For an example, see Astrobotany.
* Links are shown as bold text and tinted with the page theme color.
* The spacing of bullet lists vs. link lists is more consistent.
* Adjustments to the "Colorful Dark", "Colorful Light", and "Gray" themes. "Gray" looks different in dark and light UI modes.
* Popup menus have icons for items to make it faster to find the item you're looking for.
* Soft shadows for popup menus.
* Scrollbars fade away on macOS/iOS and dim on other platforms.
* Tabs in Preferences look the same as tabs in the sidebar.
* Cleaner unread feed item appearance. 
* URL fields highlight the domain name.

Command line usage:
* Added `--help`, `--version` options.
* A previously started instance can be controlled with command line options.
* `--list-tab-urls` prints a list of the currently open URLs.

## 1.2.3
* Fixed XML parser hanging on numeric character entities.
* Fixed "Monospace Body" option causing Gemtext line markup to be visible.
* Fixed bookmarking a wrapped link. Now the entire label text gets used instead of just the clicked segment.
* Fixed handling of non-advancing monospace glyphs.
* CMake: Automatically check if `lib/the_Foundation` is up-to-date.
* CMake: Build configuration fails if an SSL library is not found.
* Reverted default bookmarks having "Getting Started" as a remote bookmark source. Now it's just a regular bookmark.

## 1.2.2
* Stability improvements.
* Whitespace is no longer normalized when using the monospace body setting.
* Fixed issues with percent-encoded Gopher paths.
* macOS: Try to prevent forced use of high-performance GPU.

## 1.2.1
* Fixed crash when creating a bookmark.

## 1.2

New features:
* Atom feed subscriptions: Atom XML documents are automatically converted to Gemini feed index pages. This is a built-in version of the Atom-to-Gemini example on the Help page.
* Inline downloads: right-click on any link that is openable inside Lagrange and select "Download Linked File".
* Editable bookmark icons: use your favorite Unicode character as the symbol to represent a bookmarked site.
* Searching via URL field: non-URL text entered in the field is passed onto the configured search query URL (Preferences > Network). An indicator is shown if a query will take place.
* Tab auto-reloading: configure a reloading interval using the page context menu ("Set Auto-Reload..."). Auto-reloading is part of the persistent state of the tab.
* "Iosevka" and "Source Sans Pro" (the UI font) can be used as heading and body fonts.
* User preference for aligning all pages to the top of the window.
* Keybinding (F11) for toggling fullscreen mode. On macOS, the shortcut is ⌃⌘F as before.
* Keybinding for finding text on page.

UI design:
* Enhanced navbar: adjusted spacing, URL field has a maximum width, tab titles have less pronounced borders.
* Improved sidebar appearance: bold subheadings, larger feed icons, adjusted spacing, background color.
* Font consistency: all UI elements use the same font (i.e., no more monospace input fields).
* Added setting for UI accent color (teal, orange).
* General fine-tuning of the color palette.
* Dialog buttons are aligned to the right edge, leaving room for additional action buttons on the left.
* Page Information button is embedded in the URL field.
* Page Information dialog is attached to its button.
* Site icons use a different color in tab titles for visual distinction.
* Fade background behind modal dialogs.
* Responsive page margins.
* Windows: Added a custom window frame to replace the default Windows one. This looks nicer but does not behave exactly like a native window frame. Added a setting to Preferences for switching back to the default frame.

Other changes:
* Help is opened on first run instead of the "About Lagrange" page to make it easier to discover important Gemini links like the FAQ.
* "Go to Root" respects a user name found in the URL. One can still "Go to Parent" to get above the user level.
* Feed entries are sorted by refresh time if they are published on the same date.
* Don't show future-dated feed entries in Feeds.
* Middle-clicking on links: open new tab in background or foreground depending on the Shift key.
* Shift+Insert can be used for pasting clipboard contents into input fields.
* Removed a strange violet-on-green color theme pairing.

Bug fixes:
* Fixed text prompt dialogs closing and accepting the entered text when switching focus away from the app.
* Scroll position remains fixed while horizontally resizing the window or sidebars.
* Fixed a crash when opening the audio player menu.
* Fixed Gopher requests that were using URL (percent) encoded characters.
* Windows: Fixed a flash of white when the window is first opened.

## 1.1.4
* Fixed feed entry highlight/read status issue in the sidebar.
* Fixed Gopher menu links that contain spaces.
* Fixed vertical alignment of short pages: top banner is excluded because it is not part of the content.

## 1.1.3
* Fixed crash when deleting a bookmark that was being used as a remote bookmark source.
* Fixed potential crash at shutdown.
* Fixed URL path decoding not respecting reserved characters.
* AppImage: Disable SSE 4.1 for improved compatibility.
* Windows: Fixed portable build so it stores user files under the "userdata" directory and not under AppData\Roaming\.

## 1.1.2
* Fixed potential crash at launch.
* Fixed input query from a background tab being applied to the foreground tab. An input query now forces a tab to the foreground.
* Fixed window scroll position moving when resizing vertically.
* Fixed feed refresh waiting forever if a server doesn't respond.
* Fixed hover state not being cleared when right-clicking links.
* Fixed remote bookmarks not appearing if they lacked a user-friendly name on the source page.

## 1.1.1
* Fixed focus cycling inside dialogs. Widgets outside a dialog are not allowed to be focused.
* Fixed missing cursor in the New Identity "Valid until" field.
* Fixed "Import Links as Bookmarks" so it can be used to import local copies of remote bookmarks when viewing the remote source page.
* Fixed a cosmetic issue in the Import Identity dialog where part of the widget frames were not drawn.
* Fixed word wrapping issue in unread feed entry titles.
* Fixed opening a URI that contains a fragment in the default browser. The fragment is no longer omitted.
* Fixed default value for the Line Width setting.
* Linux: Check monitor DPI for UI scaling like on Windows and macOS.
* Allow reloading the same URL when clicking on a link or bookmark, or pressing Enter in the navbar.
* Bookmark URLs are normalized by removing the default Gemini port.
* Added a list of environment variables to "about:debug".
* XDG: Respect `XDG_CONFIG_HOME` environment variable for storing user files.
* XDG: Use the configured XDG download directory as default Downloads location.
* The default set of bookmarks now uses a remote source.
=> gemini://skyjake.fi/lagrange/getting_started.gmi  "Getting Started" bookmarks

## 1.1
* Added identity importing: existing client certificates in PEM format can be imported from the current page, from clipboard, or from drag-and-dropped files.
* Added setting for maximum cache size. This is the amount of fetched data kept in memory for page navigation and content lookup. The default is 10 MB.
* Added option to show full link URL when hovering on it.
* Added support for Finger links (courtesy of John Cowan).
* Added keybindings for page reload, opening link in new tab via home row keys (${SHIFT+}F), and hovering on a link via home row keys (H).
* Added keybinding for switching to next set of links for home row navigation.
* Added keybindings for new tab, close tab, adding a bookmark.
* Added a bold UI font. It is used for unread feed entries and default dialog buttons.
* Better alignment of quick lookup result icons and labels.
* Remote bookmarks are grouped under their source in the bookmark list.
* A bookmark's icon is updated after loading the page so it matches the site.
* Trusting a new server certificate manually will update the current page without reloading.
* Middle-clicking on a tab title closes the tab.
* Internal state files now use an ".lgr" extension. If downgrading after running v1.1, note that the old version will not read these.
* Fixed timestamps of visited URLs. Your browsing history will be cleared but can still be viewed manually in "visited.txt".
* Fixed issue where "heading" feed entries would turn unread after a while.
* Fixed duplicate U key for home row navigation.
* Fixed an issue with Unicode characters in quick lookup search terms.

## 1.0.3
* Improved font glyph caching: only rasterize glyphs when drawing text, and retry after failure. This makes initial document layout faster and avoids issues with permanently lost glyphs.
* Fixed parts of text disappearing when the glyph cache fills up. The cache also uses less memory now.
* Fixed percent-encoding of spaces when copying URLs to clipboard.
* Fixed feed entry context menu showing the wrong menu item for Mark as Read/Unread.
* Fixed parentheses and brackets being trimmed from feed entry titles.
* Fixed quotes appearing continuous even when there are empty lines in between.
* Fixed quote border line not showing up on empty quote lines.
* Fixed handling of redirection in a background tab — redirected URL would open in the current tab.
* Fixed Gemini URL normalization with regard to default port.
* Fixed a very minor memory leak.
* Fixed missing "gopher:" URL scheme registration on macOS.

## 1.0.2
* Fixed URL input field showing the wrong URL when opening tabs in the background.
* Fixed trusting a renewed server certificate when multiple tabs are open.
* Fixed opening sidebar feed entries in new/background tab with modifier keys.
* Fixed editing identity notes. The entered new notes were not being applied.
* Server certificate domain name check accepts a matching CN even when SAN doesn't match.

## 1.0.1
* Fixed percent-encoding of the query string.
* Fixed cursor positioning in input fields.

## 1.0
* Added remote bookmarks. Any bookmarked 'text/gemini' page with the "remotesource" tag is a source of remote bookmarks. Each link on the page is shown as a remote bookmark in Bookmarks.
* Added a way to export bookmarks via the special page "about:bookmarks". The page can also list all bookmarks by tag or by creation date.
* Added context menu item for duplicating a bookmark.
* Import all links on a page as bookmarks. (Importing tags is not supported in this version.)
* Links can be bookmarked via context menu.
* Open links with an unrecognized scheme in the default browser.
* Open sidebar items in new/background tab via context menu or modifier keys.
* "Edit Feed..." menu item shows the Feed Settings dialog.
* Removed unimplemented menu items.

## 0.13.2
* Added a little spinner to indicate ongoing requests.
* Fixed very thin progress bar on HiDPI displays.
* Fixed link to Help page from the Identities sidebar tab.
* Fixed incorrect text colors in the UI (e.g., selected lookup result).
* macOS: Disable menu shortcuts for navigation when editing text to prevent accidental page changes.

## 0.13.1
* Fixed build failure on Linux.

## 0.13
* Support for Internationalized Domain Names (IDN) in network requests.
* Percent-encoded URL paths are shown decoded in the UI, and encoded in outgoing requests.
* Added option to disable decoding of percent-encoded paths for the UI.
* Quick search via URL bar shows entries from subscribed feeds.
* Added keybindings for zooming.
* Improved usability of page content searching (${CTRL+}F, Escape).
* Clicking on a certificate warning shows the Certificate Status dialog.
* macOS: Keyboard shortcuts in native menus are updated according to bindings.
* Tweaked handling of Emojis in monospace text. They are given more space as needed, but the original monospace spacing is restored after whitespace.
* Fira Mono replaced with Iosevka Term Extended.
* Fixed use of variable-width fonts in input fields.
* Fixed handling of Unicode joiners and modifiers (by ignoring them, since we lack the glyphs).
* Fixed a layout issue with sidebars where the bottommost content line was occasionally not visible.
* Fixed exit when a hook program didn't read its input.
* Fixed crash when using an identity (with LibreSSL on OpenBSD).

## 0.12.1
* 'text/*' content falls back to plain text.
* Minimized visual artifacts in Unicode box-drawing characters (overlapping/gaps) by fine-tuning glyph scaling.
* Fixed truncated tab titles when opening tabs in background.
* Fixed possible exit if hook program not found (SIGPIPE).
* REQUEST_URL is set in the environment when running MIME hooks.
* "about:debug" lists the configured MIME hooks.
* macOS: Fixed excessive CPU usage while idling.

## 0.12
* Added MIME hooks: pipe Gemini responses through external programs for arbitrary processing. (See "about:help" for usage.)
* Added a right-hand sidebar; have a sidebar on the right or on both sides at once.
* Added a clear warning banner when there is an issue with the server's TLS certificate.
* Follow Weiph/pikkulogs — subscribe to new headings on pages.
* Added UI for subscribing: feed name, entry type (Gemini feed or new headings).
* Added keyboard shortcut ${SHIFT+}${CTRL+}D for subscribing to page.
* Feeds sidebar is capped to 100 entries. "about:feeds" shows all known entries.
* Network connections have a timeout in case server doesn't respond at all.
* Adjusted spacing before/after links to reflect use of empty lines in the source.
* Clicking on page area unfocuses URL input field.
* Added keybindings for switching tabs.
* Gopher: Query links have a 🔍 icon.
* Fixed handling of "file:///" URIs on Windows.
* Fixed misaligned Unicode box-drawing characters.
* Fixed missing error page if status code is unknown (torture test 34).
* Fixed detection of invalid headers (torture test 39).
* Fixed rendering of soft hyphens (torture test 50).

## 0.11
* Added feed subscriptions. A subscription is any bookmark with the "subscribed" tag. Subscribed feeds are refreshed in the background while Lagrange is running.
* Added a new sidebar tab for feeds.
* Added "about:feeds" to show entries from all subscriptions on one page.
* Added icons for special bookmark tags, and context menu items for toggling "homepage" and "subscribed".
* Improved stability: fixed data races, undefined behavior, thread leaks.
* Wide preformatted blocks can be scrolled horizontally with the mouse wheel or trackpad.
* Line widths are slightly narrower for improved readability.
* Light mode UI color palette is less saturated, more sepia-toned.
* Tall menus/dialogs can be scrolled with the mouse wheel.
* Improved download progress updates: never update more often than the UI can be refreshed.
* macOS: Control-Click works as a right mouse click.
* Unix: Location of `xdg-open` is no longer hardcoded.
* Fixed large downloads (10 MB+) stopping prematurely due to a decryption error.
* Fixed window contents not being updated during window resizing.
* Fixed selection/search markers disappearing when scrolling down.
* Fixed displaying of "about:" URLs in history.
* Fixed build on FreeBSD (tested on 12.1).

## 0.10
* Added option to load inline images when pressing Space or ↓ for a more focused reading experience — just keep tapping a single key to proceed. If an image link is visible, it will be loaded instead of scrolling. This option is disabled by default.
* Added context menu item to save inline images to Downloads.
* Added an option to use a proxy server for Gemini requests.
* Added a new keyboard link navigation mode focusing on the home row keys. The default keybinding for this is "F".
* Added a keybinding to activate keyboard link modifier mode. The keyboard link keys are active while the modifier is held down. The default is ${ALT}.
* Clearing and resetting keybindings via a context menu.
* Added a Window tab in the Preferences dialog; moved some of the settings around for better organization.
* Improved page search visualization: if the match is inside a link URL, the link icon is now highlighted. Previously these matches were not visualized in any way.
* Improvements to URI parsing with regard to RFC 3986. Cases that are handled better are double slashes, query-only relative URIs, relative URIs that begin with a tilde, IPv6 literals, username in the authority.
* Replaced EB Garamond with Tinos for improved readability.
* Replaced Kosugi Maru with Noto Sans CJK JP for better glyph coverage.
* Fixed font sizing of level 3 headings.
* Fixed download progress indicators sometimes remaining visible even after leaving the page.

## 0.9
* Clicking on the top banner of a page (where the site icon and hostname are shown) navigates to the root directory of the site.
* Added menu items and keybindings for navigating to site root or the parent directory.
* Added option to use a monospace body text font on all Gemini and/or Gopher pages.
* Remember redirect source URLs as visited but not shown in the History tab. Note that "visited.txt" is no longer fully compatible if opened in an older version of Lagrange.
* "gopher:" scheme is allowed in command line arguments.
* XDG: .desktop file declares support for opening Gopher URLs.
* Fixed an issue where copying the URL input field would not place anything on the clipboard.
* Fixed the Lagrange window visibly changing position during launch.
* Fixed crash when a single percent sign was typed in an input field.
* macOS: Fixed native menu keyboard shortcuts causing redundant command activations.
* macOS: Fixed assigning keybindings when there is an equivalent native menu shortcut.

## 0.8.1
* Fixed potential lockup when navigating back to a query prompt.
* macOS: Improved handling of scroll wheel events from a mouse.

## 0.8
* Added support for Gopher.
* Added support for the full palette of 8-bit ANSI foreground colors.
* Added option to disable smooth scrolling.
* Added button to manually set server certificate as trusted (if the certificate is valid but untrusted).
* Added keybindings for Back/Forward navigation.
* Added a context menu item for opening HTTP links in the default browser even when a proxy is configured.
* Revised identity creation dialog: changed field order, added warning about temporary identities not being saved.
* ${CTRL+}Click opens tab in background, ${SHIFT+}${CTRL+}Click opens as foreground tab. The same modifier keys work with keyboard navigation.
* Improved word wrapping of emoticons (:D).
* Automatic redirects allowed when the destination URL uses the same scheme as the originating URL. For example, when using a proxy, HTTP(S) is allowed to automatically redirect to other HTTP(S) URLs.
* Windows: Fixed handling of drag-and-dropped and command line file paths.

## 0.7.2
* Fixed parsing of the server's response. In some cases it was possible that the response was only partially read.
* Fixed handling of TLS/SSL connection being closed without the socket being closed.

## 0.7.1
* Fixed build on OpenBSD.
* Fixed build with LibreSSL.
* Fixed a potential crash at app shutdown.
* Fixed a potential crash when a thread exits.
* Fixed a potential lockup when a thread exits.
* Linux/Unix: Open "mailto:" links with xdg-open instead of the web browser.

## 0.7
* Basic set of user-configurable key bindings.
* Sidebar: Added a "New Identity" button and a link to "about:help" if there are no identities.
* Faster drawing of certain UI elements: site icon and current heading in the left margin, unfocused input fields, timestamp at the end of the page.
* History is not updated until a network request finishes.
* Improved opening connections when multiple IP addresses are found for a hostname.
* Fixed handling of TLS/SSL errors and hostname lookup problems — an error page is shown.
* Fixed an issue where window contents were not being updated immediately after the window gets exposed when using, e.g., openbox or dwm.

## 0.6
* Added an indicator to visualize progress of network requests.
* Added new color themes for page content: Colorful Light, Black, Gray, Sepia, High Contrast.
* Added page content color theme selection in Preferences.
* Added quote indicator option: icon or vertical line.
* Added a new font for Korean glyphs.
* Smoother smooth scrolling, making it easier to keep one's eyes on the content throughout the motion.
* Windows: Register Lagrange as a handler of "gemini:" URLs.
* macOS: Fixed glitchy window dragging during audio playback.
* Fixed timestamps of cached pages.

## 0.5
* Added MP3 support in the audio player (using mpg123).
* Added volume control in the audio player.
* Metadata in Vorbis and MP3 audio content (title, artist, etc.) is shown in the audio player menu.
* Added new serif fonts: EB Garamond and Literata.
* Allow configuring separate fonts for headings and body text for better visual distinction.
* Preferences dialog remembers the previously open tab.
* Paste from clipboard on middle mouse button click.
* Open links in new tab with middle mouse button.
* Fixed failure to find resources when launching via PATH.
* Fixed color saturation setting not affecting the default color theme.
=> https://mpg123.org/ mpg123: MPEG audio player and decoder library

## 0.4.1
* Set keyboard focus to URL input field after opening a new tab.
* Pause other audio players when a new one is started. One can still choose to have multiple audio players playing simultaneously by unpausing them again.
* Fixed dismissing an audio player that is still downloading content. The partially downloaded data is discarded.
* Fixed saving pages whose name starts with a tilde.
* Fixed saving pages restored from cache.
* Windows: The app is now distributed as an installer created with Inno Setup.
* Windows: All binaries are signed.

## 0.4
* Added audio playback with support for streaming. Supported audio formats in this release are WAV (PCM, mono/stereo, 8/16/24/32 integer/float) and Ogg Vorbis. Shoutout to Sean Barrett et al. for stb_vorbis.
* Added inline audio player that works like inline images. Clicking on an audio link opens the audio player below the link (works for URLs that have file extension .wav/.ogg).
* Visual fine-tuning: increased Fira Sans line spacing; list bullets use an accent color; adjusted accent colors in the light mode palette.
* Sidebar has a maximum width — the document must remain visible.
* Windows: Support for HiDPI displays and the system UI scaling factor. The UI will be scaled according to your settings automatically without having to adjust the UI scaling in Preferences.
* macOS: Use OpenGL on 10.13 for potentially better compatibility.
* Fixed a memory leak when closing tabs.
* Fixed unnecessary continual window redrawing related to the scrollbar hover outline.
=> https://github.com/nothings/stb stb: single-file public domain libraries for C/C++

## 0.3
* Added style customization.
* Added new font option: Fira Sans.
* Added a setting for maximum line width.
* Added a setting for adjusting color saturation.
* Added an option for "Outline on scrollbar": page outline appears when mouse is hovering over the scrollbar.
* Added an option for site icon and current top heading that appear when the window is wide enough.
* Added tabs in Preferences for better grouping.
* Added "Open Link in Background Tab" in link context menus.
* More flexible text selection behavior when starting on empty space.
* Smaller first paragraph font size.
* Fixed centering of popups so they remain centered when window is resized.
* Fixed sizing and alignment of Unicode symbols in preformatted text.
* Fixed sizing of Japanese glyphs in UI text (e.g., tab titles).

## 0.2.1
* Fixed window size/state restoration issues, e.g., after window is maximized.
* Windows: Fixed text disappearing when window is resized.

## 0.2
* Added an icon for quote paragraphs.
* Added Downloads folder to Preferences.
* Added "Save to Downloads" menu item (${CTRL+}S) for saving page contents.
* Added a download progress indicator in the URL input field.
* Added a progress indicator for inline image fetching.
* Added `--sw` option to force software rendering.
* Added macOS touch bar buttons for Back, Forward, Find, New Tab, and sidebar modes.
* Home button opens a random bookmark with the "homepage" tag.
* Improved context menu when right-clicking on links or the page.
* Recognize and handle "mailto:" links.
* Fixed behavior of images on single-image pages; cannot be hidden like inline images.
* Fall back to software rendering automatically if accelerated graphics are not available.
* Minor bug fixes.

## 0.1.1
* Fixed a potential crash at startup.
* Fixed bug where user's query input is handled by all tabs.
* Default sidebar mode is Bookmarks.
* Windows: Fixed opening HTTP links in the default web browser.

## 0.1
* The major version zero is reserved for non-feature-complete releases.
* Beautiful typography using Unicode fonts.
* Autogenerated page style and Unicode icon for each Gemini domain.
* Smart suggestions when typing the URL — search bookmarks, history, identities.
* Sidebar for page outline, managing bookmarks and identities, and viewing history.
* Multiple tabs.
* Identity management — create and use TLS client certificates.
* Light and dark UI themes.
* Select and copy text with the mouse.
* Find text on the page.
* Open image links inline on the same page.
* Open links via keyboard shortcuts.
* Instant back/forward navigation.
* Smooth scrolling.
* Scaling page content (50%...200%).
* Scaling factor for the UI (for arbitrary monitor DPI).
* Persistent app state — tabs and history are restored on next run.