wkentaro/labelme v7.0.0

on GitHub

Added

• Added a user-selectable color theme (System / Light / Dark) in the Settings dialog; System follows the OS appearance, and Dark mode is now supported where the app previously forced light mode (#2260)
• Added support for placing annotation points outside the image boundary (#2223)
• Added a schema-driven Settings dialog (replaces the "open YAML in editor" preference), with immediate live-apply and comment-preserving writes to ~/.labelmerc (#2120)
• Added a Language picker to the Settings dialog so the UI language can be changed without editing the config file (#2140)
• Added a show_labels toggle in Settings to draw each shape's label text on the canvas at its top-left anchor, live-applied without restart (#2182)
• Added a BETA badge in the Settings dialog beside preview features (Show shape labels on canvas, Allow points outside the image boundary) to signal they are shipped for early use and to invite issue reports (#2275)
• Added image flags to the Settings dialog with live dock refresh — newly added flags appear without reloading the image (#2169)
• Added inline display of enabled shape flags in the annotation list (e.g. car [occluded, truncated]) so the full annotation state is visible at a glance (#2134)
• Added Indonesian (id_ID) localization (#2143)
• Added 0.1% precision to the zoom widget (e.g. 150.5 %) for smoother stepping on large images (#2165)

Changed

• Breaking: Migrated the GUI from PyQt5 (Qt5) to PySide6 (Qt6) (#2158)
• Breaking: Dropped Python 3.10 and 3.11 support; the minimum is now Python 3.12, following SPEC 0 now that numpy and scipy require 3.12. Users on 3.10 or 3.11 should stay on the v6.3.x maintenance line (#2218, #2280)
• Breaking: Privatized the Python import surface — labelme.app, labelme.utils, and labelme.widgets moved to labelme._app, labelme._utils, and labelme._widgets; labelme no longer exposes a supported Python API (use the CLI and the JSON label format) (#2253)
• Fixed UnicodeEncodeError on non-UTF-8 locales (e.g. Windows cp1252) when labels contain non-ASCII characters by always reading and writing the config file in UTF-8 encoding (#2136)
• Breaking: Switched config file parsing from PyYAML to ruamel.yaml; comments and formatting in ~/.labelmerc are now preserved across Settings edits. Note: YAML 1.2 is now used, so boolean spellings yes/no/on/off are read as strings rather than booleans (#2114)
• Changed the delete confirmation dialog to default to Cancel (not Delete) and use verb labels (Delete / Cancel) to reduce accidental data loss (#2197)
• Updated predefined labels in the label dialog in place when changed via Settings, preserving labels typed during the current session (#2164)
• Changed point shapes to be selected by clicking the marker as a whole rather than grabbing its single vertex (#2158)

Removed

• Breaking: Removed the public LabelFile class (labelme.LabelFile); use the read_label_file / write_label_file functions and the LabelFileError hierarchy in labelme._label_file instead (#2246)
• Breaking: Removed the deprecated labelme.utils compatibility shims: labelme.utils.lblsave (use imgviz.io.lblsave) and the camelCase aliases addActions, distancetoline, fmtShortcut, labelValidator, newAction, newButton, newIcon (use their snake_case names). The from labelme import utils top-level re-export is also dropped (#2249)
• Breaking: Removed the deprecated --autosave and --nodata CLI flags; use --no-auto-save and --with-image-data instead. The remaining legacy aliases --nosortlabels, --labelflags, and --validatelabel now emit a FutureWarning (#2245)

Fixed

• Fixed a hidden shape staying hover-interactive (highlight, cursor, click-to-select) when it was the hovered shape at the moment it was hidden (#2276)
• Fixed the standalone-executable build instructions forcing numpy<2.0 (a stale PyQt5-era PyInstaller workaround), which broke builds on Python 3.12+ where numpy 2.x is the default (#2279)
• Fixed annotation label text being clipped or invisible in the label list on some desktop styles (e.g. GNOME/Adwaita) by widening the delegate's text clip rect to the rendered width (#2273)
• Fixed line and two-point linestrip shapes being unselectable by click (#2107)
• Fixed the canvas going blank after "Delete File" (Delete File now removes only the label JSON and keeps the image on screen) (#2138)
• Fixed notch artifacts at interior vertices of linestrip masks by using PIL's joint="curve" rasterization (#2163)
• Fixed deleting a polygon vertex dragging the adjacent vertex on the next mouse move (#2194)
• Fixed canvas not repainting immediately after adding or removing a polygon point via keyboard shortcut (#2174)
• Fixed grab-pan overscroll causing an image snap/jump at the zoom threshold by ramping the scroll slack continuously (#2101)
• Fixed a confusing bare KeyError when a shape label is absent from the provided labels mapping; now raises a descriptive ValueError naming all missing labels at once (#2173)
• Fixed AI Text-to-Annotation silently producing nothing when a detection-only model (e.g. YOLO-World) is paired with a mask output format; a warning now directs users to SAM or Rectangle output (#2196)
• Fixed AI Text-to-Annotation aborting with an assertion when a detection model returned no mask; it now raises a descriptive error (#2256)
• Fixed AI-assisted polygons being offset from their mask by aligning compute_polygon_from_mask with image coordinates (#2239)
• Fixed the app crashing when an AI model errored during inference; the error is now surfaced instead of aborting (#2247)
• Fixed TIFF images with non-finite (NaN/Inf) pixels rendering incorrectly by normalizing the display over finite pixels only (#2255)
• Fixed shape flag checkboxes re-enabling on label text change when they should stay disabled (#2243)
• Fixed the vertex remaining selected after removing a polygon point (#2175)
• Fixed the label dialog overflowing the screen when a label has many flags by making the flag list scrollable and keeping the popup on screen (#2263)
• Fixed the Edit Label dialog opening away from the cursor instead of at the context-menu origin (#2264)