v0.3.0

Quality of life improvements. A library root on a network share neither freezes
the window nor goes stale. Frames can be deleted from the disk with
confirmation. The scopes can be read for the chosen
mask alone, a slider's value can be typed, and White Balance has an
Auto. A folder of thousands of cached thumbnails opens at once. And
the fixes from the first day with 0.2.0 on a NAS root are here too.
Read the
guide for testers
for installing on each system, the hotkeys, and how to report a problem.

• The scopes can be restricted to the chosen mask: a Selection toggle
  beside them, off at launch, so a skin mask shows the skin's cloud on
  the vectorscope and a face its level on the waveform; the clipping
  lamps follow it too while it is on (§189)
• Delete from disk supported in all modes, with the Delete key.
  The delete runs off the window's thread (§190, §196)
• A folder of thousands whose thumbnails are all in the cache shows
  its window at once and stays responsive while they come: the pool
  delivers in batches, the rows on screen first, and rows far off keep
  their picture until scrolled near; the 20,000-frame case filled in
  1.6 s with the window drawing throughout, against 3 s of a blank
  window (§191)
• A view of the library roots that takes a while to read shows a bar with a
  count of the sidecars read, in the grid and the loupe alike, after
  the first 200 ms; a read that stops moving is given up on rather
  than left hanging (§192)
• A slider's value can be typed: click the number, Enter sets it
  clamped to the range, Escape leaves it; the point curve's selected
  point stays selected and takes a typed In and Out in 0–255 (§193)
• The camera match sheet no longer grows past the window after a run
  over many groups: its body scrolls and the buttons stay in reach
• An Auto button beside Neutral in WHITE BALANCE: grey-world over the
  frame in camera space, clipped and black pixels dropped and one pass
  re-weighting toward what is already near grey, through the same
  path as the Neutral picker, so the answer is the same whatever
  white the frame was showing and a second press changes nothing;
  frames with nothing neutral in them still fool it (§194)
• A root's chip in the library row goes off when a folder is opened
  over its view; before, the old chip stayed lit
• A library root on a network share (NFS, SMB, sshfs and the like) is
  no longer watched on Linux and macOS, where setting the watch up
  froze the editor while every folder was registered and saw only this
  machine's changes; it is passed over every 10 minutes instead
  (network_poll_minutes in settings.json, 0 for never), and the
  watcher on the other roots is set up off the window's thread, so
  adding, removing or starting with a root never holds the window
  (§188)
• When Move rejects takes away the frame on screen, culling now shows
  the nearest frame that is left, as the loupe already did; before, it
  kept showing the moved frame with nothing selected
• Opening the Settings sheet no longer freezes the window over a
  large root: the count of sidecars that are out of place, and the move that
  settles them, run off the window's thread, the sheet saying
  "Counting..." and "Moving..." meanwhile
• The Crop, Masks, and Retouch tabs no longer open blank after the
  Develop tab was scrolled down: each tab starts at its top
• The terminal no longer shows winit's Wayland event loop warning
  about a re-registered source, which is harmless
• The test build's dead-code lints on macOS and Windows, which turned
  the tag's CI red, are gated

v0.2.0

The second release. The library arrived: folders added as roots and
indexed, browsed across roots with filter chips, imported from a card,
and read without freezing the window when a root is on a network
drive. Culling got its keys answered on the picture. A button fits
the camera's own look from its JPEGs. Masks gained a learned Sky.
And the editor now says when a newer release is out. Read the
guide for testers
for installing on each system, the keys, and how to report a problem.

• A library root on a network drive no longer freezes the editor while
  it is walked: the list, the new frames' sidecars and their rows are
  read off the window's thread, and a burst of passes is one read. A
  root that stops answering shows as offline within 3 s and no longer
  stops the list of the other roots; the indexer itself still waits on
  it, so nothing new is indexed until it answers (§187, 2026-09-27).
• The user guide says where a camera profile comes from (Adobe's
  folders, RawTherapee's set, a chart shot) and that the embedded matrix
  is what most people need (2026-09-27).
• Check for a newer release at launch, at most once a day, and offer it
  in the left pane; a switch and Check now in Settings, which now
  scrolls on a short window (§186, 2026-09-27).
• The Windows package and the Mac bundle have now been installed and run
  by testers, which closes the 0.1.0 line that named them as the parts
  not verified by running them (2026-09-27).
• A library root can have a name of its own ("Archive" for a folder
  called Photos), set from its chip's right-click menu and shown in
  place of the folder's name; the folder is not renamed or moved. Escape
  closes the name sheet and the preset sheet from their fields (§185,
  2026-09-27).
• The Develop, Crop, Masks and Retouch tab bar stays at the top of the
  panel while the sections under it scroll (§184, 2026-09-27).
• A half-copied ARW (and a CR3, once rawler stops panicking on one) is
  refused with the half-copied message instead of opening as a picture
  blank below the copied part (§182, 2026-09-27).
• Culling shows the frame's stars, flag and label on the picture, on the
  loupe and on each compare tile, and a word for each key pressed ("3
  stars", "Rejected") and for each undo and redo that fades on its own
  and is not wiped by the arrow; both with Tab on. A held culling key is
  one press (§183, 2026-09-27).
• Move on after a rating, flag or label: a switch in the CULLING
  section, off by default, kept in the settings (§183, 2026-09-27).
• Fit this camera's look: a button in the Look section surveys the
  library or the open folder by body and picture style, develops
  about forty frames a group, lays the camera's own JPEG over each
  and fits the maker's rendering as a look, written to the look
  directory under the body's and the style's name; a group under
  twenty frames borrows the style from another body or is skipped,
  and an existing table is never replaced without the switch; the
  picker says where a look was fitted when the open frame is another
  body, and picture style is a filter facet. The maker's style and
  adaptive settings join the library index by a migration in place
  (§180, §181, docs/camera-match.md, 2026-09-26).
• A right-click menu on a frame in the strip, the grid or the
  viewport: copy the settings of that frame, paste them onto the
  selection through the sync sheet's section list, rating, flag and
  label, reveal in the file manager, export; every item the code of
  its key. Ctrl+C and Ctrl+V do the copy and paste from the keys, and
  each pasted frame's history reads "Paste from FILE" (§171,
  2026-09-25).
• Thumbnails are made on a pool of threads of their own instead of one
  at a time behind the develop: a cold folder of 35 fills the grid in
  0.6 s instead of 3.6, and 300 in 4 s instead of 17, the first
  picture no later; a file no picture can be made of marks its cell
  "Unreadable", and a --grid --snapshot no longer waits forever on
  it; a folder listing takes only regular files (§172, 2026-09-25).
• Import from a card: Ctrl+Shift+I or Import... in the grid's header,
  a card found under the mount points, a destination with folder and
  name patterns ({date}, {seq}, {camera}, {name} and the rest,
  names safe on every file system), a preset laid on each frame as one
  history step, and a backup copy; every file copied to a temporary,
  hashed as read, synced, read back and renamed only when the hashes
  agree, and never a write on the card; a frame already imported is
  known by its size and its first and last 64 KiB, Verify compares
  every byte; --import SRC --to DEST runs one headless (§173,
  2026-09-25).
• Roots: folders added to the library, kept in roots.json beside
  the index; a pass over every root at launch and a watcher on them
  while the editor runs, so a file copied into a root is in the grid
  half a second later and a moved frame is found rather than flagged
  missing; an all-roots view of every file under every root with the
  filter bar over it, a root's chip narrowing to it, an unplugged
  root shown offline and left alone; the filter remembered between
  sessions; rejects moved to a rejects folder in each shoot's own
  folder; --roots DIR,DIR and --all-roots (§174, 2026-09-25).
• A Sky mask on the Masks tab: a learned prior (EoMT-S, MIT weights,
  96 MB, fetched on first use) finds the sky, a gate refuses a frame
  with none rather than paint one, SAM 2 draws the outline, and a
  color-line matte at the frame's full resolution takes the edge
  through hair and bare branches; clicks add or remove sky. Under a
  second from click to mask on the GPU at 24 MP. On the 41-frame test
  set, no false sky on the five frames without one and 31 of 36 skies
  found; sky through a window, and sky behind dense blossom, are
  refused or missed (§175, 2026-09-25).
• Undo on a clone or heal spot takes it away in one step: the source
  the develop chooses completes the step that placed it instead of
  recording a second one, and sidecars 0.1.1 wrote heal themselves
  (#7, §177, 2026-09-25).
• The Tone curve switch is gone: the base curve always applies to a
  raw, and the Light section switched off leaves the picture as it
  opens; masks' tone sliders act whatever the picture's Light says
  (#9, §177, 2026-09-25).
• Removing a preset asks first, and Settings restores any default
  preset that is missing without touching the user's own (#4, §177,
  2026-09-25).
• A linear gradient's end line turns and stretches it about its
  center; Alt moves just that end, as before (#6, §177, 2026-09-25).
• A frame turned from the Crop tab turns on screen at once instead of
  a second or two later, and without a lens profile or defringe the
  develop at the new turn takes a third of the time (#5, §177,
  2026-09-25).
• The Masks tab sets the chosen shape's controls in a card under the
  shape list, marks the chosen row, labels Add / Subtract / Intersect
  as the next shape's, and heads the look sections with the
  adjustment's name, "ADJUSTMENT 1 · LIGHT" (#10, §177, 2026-09-25).
• The left pane scrolls instead of growing the window: a long list of
  snapshots no longer takes the window out of fullscreen on Windows,
  and a list's bins sit clear of its scrollbar (#2, §177, 2026-09-26).
• The left pane, the develop panel and the strip put away one at a
  time: F7, F8 and F6, or the small arrow on each one's edge of the
  viewport; Tab still puts all three away and brings them back, and
  what was put away stays put away on the next launch (#3, §178,
  2026-09-26).
• A raw that rawler panics on, such as a CR3 still being copied, fails
  to open with a reason instead of taking the frame, or on some paths
  the editor, down with it; one whose end is zeros is called
  half-copied (§179, 2026-09-26).
• Ctrl+Z while culling takes back the session's ratings, flags and
  labels, newest first, going to each frame it changes, and
  Ctrl+Shift+Z makes them again; it no longer undoes a develop edit
  or leaves culling (§179, 2026-09-26).

v0.1.2

• Fix JPEG, PNG and TIFF files opening brighter and more contrasty
  than the file: they took the 0.8-stop baseline and the display
  curve meant for a raw. A picture with nothing done to it now looks
  as it does anywhere else (#1, §152, 2026-09-23).
• Keep sidecars in a hidden .greycard folder inside the shoot's
  folder instead of beside each raw, with sidecars_in_folder in the
  settings or --sidecar-folder for a run. Both places are read
  whatever the setting says, and a frame's sidecar moves to the
  chosen place the next time it is saved. Hidden by attribute on
  Windows; XMPs stay beside the raw (§153, 2026-09-23).
• A plain cargo test no longer prints ERROR lines from the UI
  crate's tests: the log module's test had installed a terminal sink
  for the whole test binary (2026-09-23).
• app.slint split into one file a panel section under ui/panel/,
  the window keeping every property and callback so the Rust side is
  untouched; 4,949 lines down to 1,687, verified by whole-window
  captures against the previous build and a differential event fuzz,
  no behavior change (§154, 2026-09-23).
• Tab hides everything but the photo and brings it back; --hide-panels
  opens that way for a capture (§155, 2026-09-23).
• The lens profiles are offered once, unasked, the first time a picture
  opens with no lens database, with the reason; Not now is remembered
  and the LENS section keeps its button (§155, 2026-09-23).
• The PRESETS section moves to the left pane, under the navigator, out
  of the develop panel's scroll; the presets and history lists give up
  room when the pane is short of it (§155, 2026-09-23).
• A Settings sheet (Ctrl+, or the Settings... button) for where sidecars
  are written and whether XMPs are, with a "move the open frames'
  sidecars" action that reports what it renamed and what stale copies it
  removed; --sheet settings and --sheet lenses for captures (§155,
  2026-09-23).
• The release binaries are stripped: greycard-ui 112 MB to 84 MB on
  Linux, no behavior change (§155, 2026-09-23).
• Several frames at once in the strip and the grid: Ctrl+click adds
  one, Shift+click a run, Shift+arrows extend, Escape collapses; the
  rating, flag, label, reject and turn keys act on the whole set
  (§156, 2026-09-23).
• Sync settings: Ctrl+Shift+S or the Sync button lays the chosen
  sections of the frame on screen over every other selected frame
  through the preset path, one history step each; the camera profile
  only onto the body it was made for, Noise bringing the learned
  denoiser along, masks off by default; the preset and sync sheets in
  two columns so they fit a 768 px screen (§156, 2026-09-23).
• Export presets: the export sheet's choices kept by name, picked at
  the top of the sheet, saved and deleted there, and --export-preset NAME for a headless export; a metadata choice of All, No edit or
  None (§157, 2026-09-23).
• A watermark on the export: text in the system's sans-serif or a PNG,
  at one of nine positions with a margin, a size as a share of the long
  edge and an opacity, so it lands the same at every export size;
  never in the viewport; an empty or undrawable mark fails the export
  rather than letting an unmarked picture out (§157, 2026-09-23).
• Two range masks on the Masks tab: a Luminance window on the picture's
  lightness (Oklab L, 100 the sensor's white, the ends open) and a
  Color window on its hue and chroma in Oklab, each with fades, a
  dropper that centers the hue on a click and a Skin preset; sampled
  from the developed picture before the look, so a mask does not move
  under its own edit; on the CPU and in the viewport shader alike
  (§158, 2026-09-23).
• A sidecar carrying a mask shape from a later build now loads with
  that shape left out and a warning, instead of being refused whole;
  builds before 0.1.2 still refuse a sidecar with a range mask (§158,
  2026-09-23).
• The Subject and Background masks run on the GPU where WebGPU is
  available: a rewrite of the BiRefNet lite export, published by
  greycard under its MIT license, that takes 0.16 s a mask against 2.9 s
  on the CPU; fetched on first use, the original offered when it
  cannot be had (§159, 2026-09-23).
• greycard models --fetch all carries on past a model that fails and
  reports the failures at the end (§159, 2026-09-23).
• The library index, greycard-library: a SQLite index of every raw
  and picture's path, size, content hash, EXIF and sidecar meta,
  incremental, finding a moved file by hash and leaving an unmounted
  drive alone; greycard library index DIR and greycard library list 'camera:R6' 'iso>=3200' 'rating>=3' with a filter language that
  refuses what it cannot answer. Not yet wired into the editor (§160,
  2026-09-24).
• The probe reads the lens, focal length and date, and a JPEG or PNG's
  EXIF from its head without decoding it (§160, 2026-09-24).
• A save counter in the sidecar: when a frame has a sidecar both beside
  it and under .greycard/, the one saved more times wins, and the
  files' times decide only when a copy carries no count, so a copy tool
  or a restore cannot make the next save drop an edit (§161,
  2026-09-24).
• A preset click lays the preset over every selected frame, one
  history step each, the way a sync does; a camera profile in a preset
  reaches only frames of the body it was made for, the open frame
  included, and the status says which it left off (§162, 2026-09-24).
• A preset applied in culling now writes the frame's sidecar; before,
  the step lived only in memory until the next save (§162, 2026-09-24).
• A thumbnail cache on disk, keyed by the file's content hash and its
  time, so a folder reopened, moved or renamed shows its thumbnails at
  once (the 35 sample files: 4 s to 0.01 s); 300 MB by default, with a
  cap field and a Clear button in the Settings sheet's new THUMBNAILS
  row; a thumbnail made while the file was still being copied is never
  kept (§163, 2026-09-24).
• The profiled denoiser's wavelet chain runs on planes a block at a
  time: the 45 MP develop with the hybrid denoise at six threads goes
  from about 26 s to 12.7 s, the 24 MP from 11.3 to 5.7, output within
  a 16-bit step of before (§164, 2026-09-24).
• Faster develop ops, output bit-identical: the lens correction 17
  percent and its vignetting four times at four threads, the CFA gains
  twice and the levels a quarter at one thread, the Gaussian blur, the
  dehaze, and the RCD demosaic 11 percent from an inlining decision
  pinned (§165, 2026-09-24).
• Name a history step by what made it: "Preset: Faded film", "Preset
  ×3: Faded film" over a set, "Sync from 5M0A3021.CR3", "Snapshot:
  Before the crop", where the rows read as the list of sections that
  moved. The words are kept with the step in the sidecar, an older
  build reads the file as before, and a --preset step is now written
  on quit (§166, 2026-09-24).
• Export the frames selected, not only the one on screen: each under
  its own edit, one at a time on the worker behind the develop, with
  progress on the status line, a Stop, and a finished line that counts
  what was skipped or failed. A set never writes over one of its own
  sources. --export DIR --also ROWS does it from the command line
  (§167, 2026-09-24).
• The library index in the editor: the open folder is indexed on a
  thread of its own and kept up to date as sidecars are saved, and
  the grid's filter grows chips for camera, lens, ISO, focal length,
  day and keyword with their counts, a text field that takes the
  filter language (camera:R6 iso>=3200 rating>=3), and --filter
  on the command line. The database is greycard/library.sqlite
  under the platform's data directory, or --library PATH (§168,
  2026-09-24).
• Fix a click with the color range, white balance or defringe
  dropper zooming the view as well, and a drag with one panning it
  (§169, 2026-09-24).
• Drop the color mask's Skin button: a new color window starts at the
  skin already, and the button only put the sliders back there (§169,
  2026-09-24).
• Offer the GPU Subject model where the store holds the original and
  it is on record as falling back to the CPU on this card, with the
  reason on the sheet; an offer accepted mid-session is used at once,
  and one declined leaves the original working (§169, 2026-09-24).

v0.1.1

• Fix the macOS package failing at launch with "Library not loaded:
  liblcms2.2.dylib" on any Mac without Homebrew's little-cms2. lcms2 is
  now built into the app, and packaging refuses a Mac build that links
  a library outside the system and the bundle (notes §151).

v0.1.0

The first test build of greycard, a raw editor for Linux, macOS and
Windows. It is a pre-release: some things are missing and some are
wrong, and the reason it is out is to hear about both. Read the
guide for testers
before you start; it covers installing on each system, the keys, and
how to report a problem.

What you can do with it

• Open a folder of raws and move through it in a filmstrip, a grid or
  a single frame, with the camera's own JPEG shown at once and the
  develop replacing it a moment later.
• Cull from the camera's JPEG without developing anything: ratings,
  picks and rejects, color labels, a filter over all of them, compare
  two or four frames, and move the rejects into a folder of their own.
• Develop: exposure and tone, a parametric and a point curve, a color
  mixer, grading, black and white, texture, clarity and dehaze, grain
  and vignette; white balance and camera profiles; lens corrections
  from lensfun; demosaicing, highlight reconstruction, chromatic
  aberration correction, deconvolution sharpening and two denoisers.
• Mask with gradients, radial shapes and a brush, or let a learned
  model find the subject or an object; heal, clone and fill.
• Crop, straighten and correct perspective.
• Use presets, including Lightroom's, and 3D LUT looks.
• Export JPEG or TIFF in sRGB, Display P3 or Rec.2020, with the
  profile and the EXIF embedded.
• Keep every edit in a .gcd file beside its raw, and share ratings,
  labels and keywords with Lightroom and darktable through XMP.

Known rough edges

• The default look and the Highlights, Whites and Shadows sliders are
  close to Lightroom's but not there yet; that is the next release.
  Tell us when a frame looks too dark, too flat or wrong in a way you
  can name.
• Fujifilm X-Trans bodies and Nikon's High Efficiency raws do not open.
• On Windows and macOS the display is taken as sRGB unless you choose
  your monitor's ICC profile by hand.
• On a Mac, a double-click in the Finder launches greycard without
  opening the file. The app is not signed, so each system warns once
  before it first opens; the guide says what to click.
• The best denoisers take tens of seconds on a large frame.

Report a problem from the button at the foot of the left panel: it
fills in the version, your system and your GPU, and shows you the log
to attach.