Releases · Event-Horizon-desktop-environment/pittore-studio

0.1.1 — 2026-10-13

Added

Native CMYK editing (partial). CMYK documents now retain per-layer
device ink samples alongside the RGB appearance image, so paint that
belongs in ink space stays in ink space:
- Normal source-over brush and pencil dabs (build-up and wash) and
  normal-composite bitmap stamp tips paint directly into the inks and
  derive their preview through the document profile.
- Color Replacement and Paint Bucket fills update device inks; Magic
  Eraser and alpha-only selection edits preserve them.
- Tonal brushes, healing and cloning re-separate only the region they
  changed, leaving untouched device samples alone; accepted destructive
  filters re-separate through the document profile, and a cancelled
  filter preview restores the original inks.
- Non-normal brush composites, vector and text paint, and layer
  compositing still cross the RGB appearance boundary.
CMYK/16 document mode in the new-document dialog, alongside the
existing RGB/8, RGB/16, RGB/32, Grayscale/8 and CMYK/8.
CMYK file round trips.
- .psc projects gain a v5 optional per-layer native CMYK payload;
  v1–v4 files decode unchanged and files that need no newer fields still
  encode at the oldest compatible version.
- CMYK PSD/PSB layer and composite inks are retained on import and
  re-emitted on export.
- New TIFF reader for separated data (tiffDecodeCmykFile): 8/16-bit
  CMYK and CMYKA, stripped or tiled, contiguous or planar-separate, all
  eight orientations, ICC profile carried alongside.
- A shared destination-profile resolver feeds the Image ▸ Mode
  conversion, the layered PSD writer and the TIFF export path, so all
  three agree on which profile separates the document.
Auto Refine. One-shot AI refinement of the current selection or
mask: segment, remove speckles, decay haze, smooth, decontaminate and
write back to the layer, with a run report (model, timing, matte
coverage, stages that ran). The pipeline lives in a new
window_ai.cpp command file next to Select Subject, Remove Background
and Enhance Edges.
Refine dialog improvements.
- Shift slider to displace the edge after feathering (contract or
  expand).
- Smart radius: one narrow-band pass everywhere plus a wide-band pass
  accepted only where the mask edge is soft, so hard boundaries keep a
  tight treatment while hair and fur ramps get the wide one.
- Pressed brush footprints preview as translucent discs while you paint
  in the dialog, instead of only after the re-solve.
New matte cleanup operators in the selection mask library, used by
the Refine pipeline: detached-island speckle removal, small enclosed
hole filling, low-confidence haze decay driven by local texture, and
smart-radius edge snapping.
Guided upsampling of AI masks. Model-resolution masks are lifted to
full resolution with joint bilateral upsampling (Kopf et al. 2007),
weighting coarse taps by position and colour in the full-resolution
guide so contours land on real image edges instead of the model grid.
Pigment-mix dab compositing. Geometric mean, parallel (harmonic)
and Allanon mean blends for brush dabs, giving watercolour-style
glazing where overlaps average instead of cover. Exposed as a brush
composite option and mapped from imported preset bundles.
Paper grain textures. A grain evaluator for brush textures —
tile sample, subtractive brightness, mid-grey-pivot contrast,
neutral-point remap, cutoff window and strength combine — with
pressure-driven strength and automatic invert on the eraser. Opt-in per
preset; existing textures keep the legacy combine.
Brush engine additions: auto-spacing coefficient (size-law
spacing stride), clean-room .pat pattern decoder (depth 1–4, malformed
input fails cleanly), and sharpness / soften / darken dynamics carried
through from imported presets.
Richer preset bundle import: pressure child-sensor curves are read
from the correct sensor block instead of whichever curve comes first,
all sensor entries are collected in order, and auto spacing, composite
operation, darken, sharpness and softness now map into the preset model.
Approximations are still recorded in the import notes.
Threaded SVG import. Large SVGs parse and rasterize off the GUI
thread with cooperative progress and cancel; a cancelled import aborts
quietly and a closed dialog drops the result unread.
MCP bridge tools: run_command (headless-safe command ids —
auto_refine, select_subject, remove_background, enhance_edges,
deselect, invert_selection; dialog-opening commands are refused),
run_info (last AI run report) and export_layer_png. Bridge reads
allow long-polling so multi-minute AI commands no longer trip the
socket timeout.
Refine lab test harness (tests/Refine-app): a headless-capable
refine window with its own MCP server and a tuned hair preset, plus
refine_probe and upsample_probe executables.

Changed

HiDPI rendering above scale 1 is correct. Canvas tiles snap in
device pixels, the checkerboard is baked per device pixel ratio, zoom
modes account for the ratio, pointer math keeps sub-pixel precision,
icons ship 1x/2x variants, and the HiDPI policy is applied before the
QApplication constructor runs.
Affinity import. Fill rasters (FRst) become masked solid fills
instead of opaque layers, and the flattened background layer is only
kept when it actually carries something the recovered stack lacks —
a clean import no longer leaves a redundant "Background (flattened)"
row (logged as such).
Colour decontamination now propagates confident foreground colour
outward by weighted diffusion and blends edge pixels toward it, instead
of unmixing the backdrop out of low-alpha pixels; amount and radius are
parameterised.
Open-image path decodes flat CMYK PSD and TIFF sources through the
retained-ink path when the file opens at full resolution inside the
document memory budget; proxied files and unsupported TIFF layouts use
the appearance path as before.
Wash stroke baking re-uploads the touched pixels, re-renders the
baked region and emits regionModified, so a baked wash stroke is
visible immediately rather than at the next zoom.
README carries a banner image; version strings updated to 0.1.1.

Fixed

Build failure in app_state_open.cpp when opening flat CMYK sources.
Unused-parameter warnings in the no-ONNX AI stubs (decodePrompt,
segment_rgba8, and the encoder/decoder paths), which otherwise fire on
every build that links no ONNX Runtime.

Packaging and CI

GitHub Actions upgraded: checkout@v6, upload-artifact@v5,
download-artifact@v5, action-gh-release@v3.
Fedora RPM builds move from Fedora 41 to Fedora 44.
Snap builds pin snapcore/action-build to a Node 24 commit until
upstream ships a tag.
Release workflow tags the release on workflow_dispatch (reusing an
existing tag), publishes only pittore-studio* artifacts with
fail_on_unmatched_files, and the previous "latest" prerelease becomes
the rolling release.
Test execution is disabled in CI: the full meson suite (notably the
heavy tools-ux cases) times out on hosted runners. just test remains
the pre-merge gate and must be run locally.

Tests

New suites: test_color_mode, test_svg_import_async, CMYK cases in
test_tiff, expanded test_selection_ops, test_selection_mask,
test_project_file, test_psd_export, test_brush, test_tools_ux.

Releases: Event-Horizon-desktop-environment/pittore-studio

Release list

v0.1.6

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v0.1.5

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v0.1.3

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v0.1.1

0.1.1 — 2026-10-13

Added

Changed

Fixed

Packaging and CI

Tests

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First ever Release!

What's Changed

New Contributors

What's Changed

New Contributors

Contributors

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