Recolor: the Global Adjust sliders change every color at once

The Edit tab's color mode menu offers Global Adjust, with Saturation,
Brightness, Temperature and Luminosity sliders from -100% to 100% that
open at 0%, which changes nothing. One slider changes every recolored
color, each one separately, in its own model; the rows keep their new
colors and the art previews the change. The Edit tab also shows the
color sliders of the selected new color in the other modes.

recolor.apply takes globalAdjust {saturation, brightness, temperature,
luminosity}. Excluded rows and colors no row holds stay as they are, a
rewritten color group takes the same change, and with Limit to Library
each row's new color takes it before it snaps to the library.

Docs: docs/mcp.md, docs/control-protocol.md, docs/target-app-parity.md.

docs/control-protocol.md

@@ -259,7 +259,12 @@ as `recolor.reduce` returns them), `colors` (null for Auto), `method`, `preserve
 `sliderMode` (the mode of the color sliders under the rows: `hsb`, `rgb`, `cmyk`, `lab`, or `tint` for a row whose new
 color is a spot color of the library; unset, they show the new color's own model). The sliders edit the first selected
 row's new color and give that row `model: "new"`, so the preview and confirm give only that row's art the color in
-the sliders' mode; another edit of the row's new color, Reset and rows reduced again remove it. Setting
+the sliders' mode; another edit of the row's new color, Reset and rows reduced again remove it. The Edit tab shows the
+same sliders under the wheel, and its mode menu also has Global Adjust (`sliderMode: "global"`): Saturation,
+Brightness, Temperature and Luminosity sliders that set `globalAdjust` (`{saturation, brightness, temperature,
+luminosity}`, percent from -100 to 100, 0 by default). The dialog sends a non-zero `globalAdjust` as `recolor.apply`'s
+`globalAdjust` in every slider mode, so one slider changes every recolored color at once and the rows keep their new
+colors; colors opened alone are saved as a group with the change. Setting
 `colors`, a preserve flag or `limitTo` reduces the rows again (also on `ui.dialog.confirm`). The dialog previews
 `recolor.apply` on the canvas; confirm keeps it as one undo step (with a group, the group is rewritten in the same
 step; with no art selected only the group changes). In the Swatches panel, double-clicking a colour group's folder,

docs/mcp.md

@@ -1929,7 +1929,7 @@ the objects `select.all` takes, which leaves out hidden and locked art, and the
 and locked objects inside a group are left out too, also in isolation mode.
 `recolor.reduce {colors?, method?, preserve?, limitTo?, ids?}` groups those colours into rows of similar colours (k-means in Lab, weighted by use;
 tints of a global swatch share its row; White and Black are preserved by default) and returns a map of rows
-`[{from: [keys], to: key}]` to edit and pass to `recolor.apply {map, method?, model?, limitTo?, group?, groupColors?, rename?}`.
+`[{from: [keys], to: key}]` to edit and pass to `recolor.apply {map, method?, model?, limitTo?, group?, groupColors?, rename?, globalAdjust?}`.
 For scripts and MCP, `model` selects the replacement color model: `keep` (default) retains each
 original color's model, `new` takes the replacement's model, and `document` converts replacements
 and edited color groups to the document's model. A row's own `model` (the same values) takes the
@@ -1953,11 +1953,26 @@ is linked to a swatch rewritten with another color keeps its row's new color, ev
 linked to the swatch, as does art whose color the row converts into the art's own color model. Without `group`,
 the swatch keeps its color and the recolored art is no longer linked to it.
 
+`globalAdjust: {saturation?, brightness?, temperature?, luminosity?}` is the dialog's Global Adjust: each amount is a
+percentage from -100 to 100 (0 when left out), and all four at 0 change nothing. Every color that a row which is not
+excluded recolors takes the same change after its row's new color, in this order: saturation multiplies HSB
+saturation by 1 + saturation/100; brightness moves HSB brightness that share of the way to full brightness (above 0)
+or to black (below 0); temperature adds 0.2 × temperature/100 to red and subtracts it from blue; luminosity moves Lab
+lightness that share of the way to 100 or to 0 and keeps Lab a and b, so the hue stays. Each color keeps its own
+model, and a changed color is no longer linked to its swatch. The colors a `group` is rewritten with take the same
+change. With `limitTo`, each row's new color takes the change before it snaps to the library, so the art still takes
+the library's colors. Colors that no row holds, such as preserved White and Black, and excluded rows stay as they are.
+
+```json
+{"name":"run_command","arguments":{"command":"recolor.apply","params":{"map":{"#ff0000":"#ff0000","#0000ff":"#0000ff"},"globalAdjust":{"saturation":-40,"temperature":25}}}}
+```
+
 The `recolor.*` commands refuse parameters of the wrong form. A `limitTo` or `method` that is not a string gets the
 error for an unknown library or method. Other wrong-form parameters get an error that names them.
 `includeImages`, `includePatterns`, a row's `exclude`, `order`, `saturationBrightness` and the `white`, `black` and
 `grays` switches of `preserve` must be true or false; `colors` and `seed` must be whole numbers; `group` and `rename`
-must be strings, `groupColors` must be an array and `preserve` must be an object. Each refusal leaves the document unchanged and records no undo step. A `null`
+must be strings, `groupColors` must be an array, `preserve` must be an object, and `globalAdjust` must be an object
+whose amounts are numbers from -100 to 100. Each refusal leaves the document unchanged and records no undo step. A `null`
 counts as a value left out except for `recolor.apply`'s `model` and a `map` row's `model`, which must be strings when given.
 
 ```json

docs/target-app-parity.md

@@ -123,7 +123,7 @@ dominate; 3D, graphs and automation are specialist). They sum to 105. Feature de
 | Selection, transform & align tools | 6 | 85% | Direct Selection segment click/Delete corrected (#1278); open-path anchor Delete keeps gaps; Select › Start Global Edit finds the paths, compound paths and symbol instances of the selected object's shape (Appearance, Size and artboard options) and gives an edit of one to all of them in proportion, as one undo step (#3521), and on a group the groups like it, an edit inside one reaching the same object in the others (#4939); the Align panel menu's Align to Glyph Bounds › Point Text and Area Text measure type by its glyphs' ink for Align and Distribute (#4231); remaining: Free Transform/Scale/Reflect along a rotated box, Global Edit of rotated copies and excluding a match with Shift-click, transform nuances (no-op anchor Align history regression-tested, #1180 follow-up) | 4–6 | estimated; Global Edit regression-tested (`crates/engine/src/tests/globaledit.rs`; Quick Action, menu label and Escape in `panels::properties::tests::start_global_edit_quick_action_and_escape`) |
 | Drawing tools (Pen, Curvature, Pencil, shapes, Shaper) | 7 | 85% | Shaper construction widget, Pencil/Pen nuances, Blob Brush options, Touch Type, Dimension tool; see [ui-parity.md](ui-parity.md) | 8–13 | estimated; Curvature point display regression-tested (#1236, in part); Polygon/Star exact-size count persistence regression-covered; Live Corners' Relative rounding done (#3091), score unchanged |
 | Path operations, Pathfinder, Shape Builder, Live Paint | 5 | 80% | Shape Builder on the reporter's file (#937: art past 4,096 segments is cut by lines again; unconfirmed on the file itself); gap detection shares Live Paint’s finder, with a 72 pt custom cap and the existing options; Live Paint Gap Options | 4–8 | estimated; Shape Builder Gap Detection shares Live Paint’s spatial gap finder and temporary merge bridges (#2526); Custom is capped at 72 pt in the existing options dialog (lowered from 86%: open issues); compound attributes regression-tested (#1197); single-result source names survive SVG export/import (#1293), with [SVG ID semantics](https://www.w3.org/TR/SVG2/struct.html#IDAttribute) and original-shape tests; Simplify component selection and preview regression-tested (#1272); Simplify of a Direct Selection part of a path regression-tested (`tests/simplify_part.rs`); Divide open-cutting-path geometry and appearance regression-tested (#1307); the Shape Builder's edge-source grid is bounded in memory and files a segment once per cell (`planar.rs` test `rect_index_holds_a_bounded_number_of_references`); live compound shapes (Make, Alt-click, member Shape Modes, Release, Expand, saved and exported) regression-tested (#4522) |
-| Colour, swatches, gradients, patterns, mesh, recolor | 7 | 92% | 30.0's gradient additions are done (dither, perceptual blending, presets); freeform gradients in SVG/PDF, mixed spot/process gradients in SVG, and PDF gradients mixing a spot color with RGB or Lab stops | 4–7 | estimated; Recolor model selection is available through the engine and MCP (#2520), and the dialog's color sliders (HSB, RGB, CMYK, Lab, Tint for a spot color) edit the selected row's new color in its mode (lowered from 96%: target moved); unpainted zero-width stroke restoration fixed (#1253), score and hours unchanged; Eyedropper source reads regression-tested (#1251); screen-bounded Recolor Edit chip list (#3416), score and hours unchanged |
+| Colour, swatches, gradients, patterns, mesh, recolor | 7 | 92% | 30.0's gradient additions are done (dither, perceptual blending, presets); freeform gradients in SVG/PDF, mixed spot/process gradients in SVG, and PDF gradients mixing a spot color with RGB or Lab stops | 4–7 | estimated; Recolor model selection is available through the engine and MCP (#2520), and the dialog's color sliders (HSB, RGB, CMYK, Lab, Tint for a spot color) edit the selected row's new color in its mode, and the Edit tab's Global Adjust sliders (Saturation, Brightness, Temperature, Luminosity, -100% to 100%) change every recolored color at once (lowered from 96%: target moved); unpainted zero-width stroke restoration fixed (#1253), score and hours unchanged; Eyedropper source reads regression-tested (#1251); screen-bounded Recolor Edit chip list (#3416), score and hours unchanged |
 | Strokes, brushes, width profiles | 5 | 88% | Shift-double-click adjoining adjustment is implemented; brush libraries are done (four generated libraries, User Defined, Other Library…, Save Brushes); remaining:  Art brush Overlap, Pattern brush auto corners, pen pressure on macOS, tilt/bearing/rotation | 8–15 | estimated; width-point creation and adjoining adjustment regression-tested; dialog layout reviewed; evidence below; finite-arithmetic follow-up regressions and full CI passed (evidence below) |
 | Appearance, transparency, graphic styles, masks | 5 | 97% | raster effect reach in preview bounds | 1–2 | estimated |
 | 3D and Materials (and Turntable) | 4 | ~25% | live Revolve with automatic smooth vector shading and default-on continuous circular caps, Extrude & Bevel (twist, taper, caps, five bevel shapes), Inflate and Rotate with Position presets (colored Inflate uses smooth membrane lighting; white-light Inflate retains its existing shading; Extrude & Bevel and Rotate retain planar shading; one to ten colored lights, shared neutral ambient, painter visibility); materials, light presets, shadows, ray tracing, 3D Classic, Turntable views, 3D export | 30–55 | estimated (Extrude & Bevel, Inflate and Rotate added 2026-10-12) |