Initial version

First versioned build — a pre-release snapshot shared with friends. Everything
below is the feature set as of this tag.

Browsing

• Folder browsing with a multi-drive root and async directory enumeration
  off the GUI thread. .. always sorts first. On Linux and macOS (single drive)
  the / row is hidden — the tree starts at the contents of / and Pixee opens
  in your home folder unless a previous session or a command-line image says
  otherwise; other volumes (/media, /mnt, /Volumes) stay reachable by
  browsing.
• Background re-scan on entry — entering a folder diffs it against disk in
  the background, so files added or removed by another app appear without a
  manual F5.
• SMB-friendly — chunked file reads with cooperative abort, off-GUI
  directory enumeration, and no QFileSystemModel / QFileDialog for the
  browser (both behave poorly on Windows network shares).

Thumbnails

• Thumbnail pipeline — local SQLite cache (WAL), a four-worker decode pool,
  a viewport-driven priority queue (top-left → bottom-right), per-session
  negative caching, and automatic background fill of the rest of the folder once
  the visible cells are done.
• Refresh thumbnail context-menu action (for images, and for folders — which
  rebuild their index-image overlay) force-rebuilds a thumbnail from the file's
  current bytes — the escape hatch for one cached while the file was still being
  written (a long export).
• Folder index thumbnails — the alphabetically-first image inside each folder
  is auto-picked and overlaid on the folder icon (configurable margin / border /
  vertical offset). The pick uses the same locale-aware, case-insensitive
  ordering as the file list, so the overlay always matches the first cell you see
  on entering the folder — and it stays alphabetical no matter how the list is
  sorted.

Sorting

• View → Sort by orders the file list by name, creation date, or
  modification date, ascending or descending (two independent, sticky choices).
  Folders stay grouped ahead of files and always sorted alphabetically A→Z (only
  the files follow the chosen key/direction); .. stays first regardless. The
  folder tree and the folder index overlay are always name-sorted.

Viewer

• Integrated image viewer — async chunked loading with a cached-thumbnail
  placeholder, fit / 1:1 / discrete zoom (0.1×–8×), pan with Space + LMB or
  middle-drag, 90° rotate, F11 fullscreen, and a 5-image preload cache for
  instant prev/next.
• Pixel-art aware — nearest-neighbor upscaling for images smaller than the
  cell, smooth scaling for downscaling. Transparent images render over a
  configurable checker pattern.

Formats

• Format support for everything Qt's image plugins can decode — JPEG, PNG,
  WebP, GIF, BMP, ICO — plus whatever extra plugins (HEIC, AVIF, PSD via
  kimageformats, …) are installed against your Qt build. ICO files pick the
  highest-area, highest-bit-depth sub-image.

File operations

• Copy / Cut / Paste / Move / Rename / Delete / New folder, batched through a
  task pipeline with a modal conflict prompt (Skip / Rename / Overwrite). When a
  batch finishes, the files it added to the current folder are selected and
  scrolled into view (toggle in Settings).

Settings & languages

• Settings window (Edit → Settings…) — a non-modal, always-on-top panel
  with searchable settings (type to filter any label), grouped in an icon
  sidebar, Save / Cancel. Currently: Select added files and Language.
• Languages — English plus Hungarian / German / French / Spanish scaffolding;
  pick one in Settings (restart to apply) or follow the OS locale. Untranslated
  strings fall back to English.

Appearance

• Themable — Qt stylesheet (style.qss) plus an INI for non-CSS values
  (style.ini). User overrides drop in at ~/.pixee/themes/<name>/. Dark theme
  included.

Packaging (Windows)

• Portable build — scripts\make-portable.bat produces a self-contained
  folder + zip (HEIC/AVIF when built from an x64 Native Tools Command Prompt).
• Installer — scripts\build-installer.bat wraps the portable into
  dist\Pixee-<ver>-setup.exe via Inno Setup 6, registering Pixee in Explorer's
  Open with… for the bundled image types. Currently unsigned (SmartScreen
  warns on first run; Azure code-signing is documented for later).
• Single-source versioning — the version lives in one place (VERSION.txt)
  and flows to the app (--version, Help → About), the .exe file-properties
  resource, and the installer.