Merge pull request #669 from yelintong/feat/flutter-codegen

M7: Flutter code generation

docs/components-parity.md

@@ -65,7 +65,7 @@ updates with overrides kept: `library_tests.rs`, `components_scale_tests.rs`.
 | Variables: colour, number, string, boolean; collections, modes, aliases, scopes, groups | done | behaviour suite: `variables_behaviour_tests.rs`; aliases same type, no loops (also on create); scopes filter pickers only |
 | Modes: add, duplicate, rename, delete, set as default / reorder | done | layers on Auto follow a new default; explicit modes stay |
 | Deleting a bound variable or its collection | done | layers keep their last value and are unbound; aliases to it take its values |
-| Code syntax per platform (Web, iOS, Android) | done | generated CSS uses the Web name; in the variables JSON; SwiftUI/Compose code doesn't name variables yet |
+| Code syntax per platform (Web, iOS, Android, Flutter) | done | generated CSS uses the Web name; in the variables JSON; SwiftUI/Compose/ArkUI/Flutter code doesn't name variables yet |
 | Bindings: fills, strokes, effects, opacity, padding, gaps, sizes, radius, font family/style, font size/weight, line height, letter spacing, paragraph spacing/indent, text, visibility, layout grids, instance properties | done | type-checked per field; number variables fill text content; the Design panel's font family and font style menus start with Apply variable (string variables), and a bound one shows its variable in place of the menu; a colour variable bound to a solid paint brings its whole colour, alpha included, once (the paint's opacity restarts at 100% on binding, an opacity set while bound multiplies on top; unbinding moves the alpha back into the opacity) |
 | Explicit modes per frame, library collections' modes | done | |
 | Gradient stops and variant properties bound to variables | done | a stop's binding follows it when earlier stops are removed |

docs/dev-mode-parity.md

@@ -12,13 +12,13 @@ repository, third-party integrations. Remaining: 1–2 h.
 |---|---|---|
 | Dev Mode toggle (Shift+D), Inspect panel | done | the canvas only inspects: presses select, pan and comment but never move, resize, draw or edit text and vectors; menus and shortcuts refuse design edits with a note (Dev Mode's annotations, statuses, dev resources, measurements, code connections and comments still work); a drawing tool chosen in the toolbar goes back to the design. The layers panel only selects and expands (no renaming, reordering, hiding or locking; a double click says why), and the Pages list only opens pages (no adding, renaming, reordering, duplicating or deleting). Files dropped on the canvas aren't imported (a dropped document still opens as a file of its own), and the Assets panel places, swaps and applies nothing, doesn't change Hide when publishing, and doesn't accept library updates or add, remove or swap libraries; each says why |
 | Properties with their styles and variables; redlines on hover | done | positions from the frame around the layer (groups aren't frames), rotation, radius (CSS corner order), opacity, blend; colours in hex, RGB, CSS, HSL or HSB (`inspect.properties {colorFormat}`, the Inspect tab's Color format) |
-| Code: CSS, iOS (SwiftUI), Android (Compose) | done | plus HTML, React, Vue and Leptos (ours; Leptos: `#[component]` functions with `#[prop]` defaults, variant enums and `view!` markup); components take properties as parameters, instances are calls; CSS in px or rem (`inspect.code {unit, rootFontSize}`), with rotation, blend modes, gradient directions and kinds (linear, radial, conic), text alignment, case and decoration; class names from layer names transliterate non-ASCII scripts into readable ASCII (로그인 화면 → `rogeuin-hwamyeon`, кнопка → `knopka`, über → `uber`; symbols-only names take the node's kind, `.text`), and the 40-character cut lands on a word boundary (#1235) |
+| Code: CSS, iOS (SwiftUI), Android (Compose), Flutter | done | plus HTML, React, Vue and Leptos (ours; Leptos: `#[component]` functions with `#[prop]` defaults, variant enums and `view!` markup; Flutter is ours too: a `StatelessWidget` for a component, a widget tree for a layer); components take properties as parameters, instances are calls; CSS in px or rem (`inspect.code {unit, rootFontSize}`), with rotation, blend modes, gradient directions and kinds (linear, radial, conic), text alignment, case and decoration; class names from layer names transliterate non-ASCII scripts into readable ASCII (로그인 화면 → `rogeuin-hwamyeon`, кнопка → `knopka`, über → `uber`; symbols-only names take the node's kind, `.text`), and the 40-character cut lands on a word boundary (#1235) |
 | Assets list with export | done | layers with export settings, icons (small, vector shapes only: SVG) and images (PNG); the icon rule is ours |
 | Annotations: pinned properties, categories, coloured callouts, filter | done | |
 | Ready for dev list, statuses, "Changed" after edits | done | the list filters Ready for dev, Changed, Completed or any, and badges changed ones (`inspect.readyForDev {status: changed}`, `changed` per item); only sections and frames at the top of a page or section take a status (others are refused) |
 | Focus view (one frame, previous / next) | done | |
 | Compare changes (before/after side by side or overlaid, property diffs) | done | against the snapshot taken when a frame was first changed after it was marked ready, or any saved version (`dev.compare {version}`; the view's Compare with menu); a frame that isn't ready for dev compares with versions |
-| Code connect (map components to repository code) | done | per language (React, Leptos, Vue, SwiftUI, Compose, ArkUI): import path, name and a template with `{property}` and `{property ? "a" : "b"}` placeholders; instances (also inside generated layer trees) show the snippet with their values; edited in the Inspect panel with a live preview; `figcraft.connect.json` export/import; generated layer trees bring the import lines of the connected components they call (also in definitions, slots and swapped-in instances) once each at the top, per language. No CLI publishing mappings from the code repository |
+| Code connect (map components to repository code) | done | per language (React, Leptos, Vue, SwiftUI, Compose, ArkUI, Flutter): import path, name and a template with `{property}` and `{property ? "a" : "b"}` placeholders; instances (also inside generated layer trees) show the snippet with their values; edited in the Inspect panel with a live preview; `figcraft.connect.json` export/import; generated layer trees bring the import lines of the connected components they call (also in definitions, slots and swapped-in instances) once each at the top, per language. No CLI publishing mappings from the code repository |
 | Plugins in Dev Mode (Jira, GitHub, etc.) | partial | FigCraft's own WASM plugins that only read run from the Inspect tab, with their panels (callbacks can only read); no third-party integrations |
 | Measurements (redlines on hover, Alt in the design) | done | distances between the selection and the hovered layer, its parent or a guide, auto layout padding and gaps (Shift+Alt); measurements kept on the canvas (`devMode.addMeasurement` between two layers, along a side or to the layer around it; stored on the layer, saved, synced, undoable) drawn in Dev Mode as labelled redlines that follow the layers, listed, placed and removed in the Inspect tab; a measurement whose other layer was deleted isn't drawn until an undo brings it back |
 | VS Code extension | out of scope | FigCraft's MCP server and control channel already serve design data, code and connected snippets to agents and editors |
@@ -31,6 +31,7 @@ repository, third-party integrations. Remaining: 1–2 h.
 | 2026-10-26 | minor | Class names from layer names transliterate non-ASCII scripts (#1235): `class_name` runs names through `deunicode` (new dependency: pure Rust tables, zero deps, BSD-3-Clause), so Korean, Cyrillic, Latin-diacritic and CJK names become readable ASCII classes in HTML/CSS/React/Leptos output, component roots and `data-*` variant attributes (`rogeuin-hwamyeon`, `knopka`, `uber`, `an-niu`; before, every one of them came out `layer-`); symbols-only names take the node's kind (`.text`, `.frame`) instead of `layer-`, and the 40-character cut lands on a word boundary. ASCII-only names are unchanged. `html_codegen_tests` updated (its diacritics expectation improves from `layer-1-n-code-name` to `layer-1-unicode-name`) and extended. Percentages and hours unchanged |
 | 2026-10-24 | minor | Dev Mode refuses design edits from files dropped on the canvas (a dropped document still opens as a file of its own, and the drop overlay shows the Dev Mode note for other files), from the Pages list's add, rename, reorder, duplicate and delete, and from the Assets panel's place, drag, Alt-drop swap, style, Hide when publishing, Update, and adding, removing and swapping libraries. Percentages and hours unchanged |
 | 2026-10-24 | minor | Measurements kept on the canvas (gap 16): `devMode.addMeasurement {from?, to?, side?}` places one between two layers, along one side of a layer or (neither) to the layer around it, stored on the layer it starts from (saved in `.figcraft`, synced, undoable; old files open without them); Dev Mode draws them as labelled redlines that follow the layers, the Inspect tab lists them (those of the selected layer, or every one on the page), places and removes them; `devMode.removeMeasurement` and `devMode.measurements` remove and list them; a copy keeps those to layers copied with it. The layers panel is read-only in Dev Mode: rows select and expand, but don't rename, reorder, hide or lock. Breadth 97% → 98%, ready 76% → 78%, 2–4 h → 1–2 h |
+| 2026-10-16 | minor | Flutter code generation (ours: the incumbent generates CSS, iOS and Android only): `inspect.code {language: flutter}`, with `dart` as an alias, writes a Dart widget tree for a layer — `Container` for a frame's box (size, padding, `BoxDecoration` with colour, radius, border and shadows), `Row` / `Column` for auto layout (`spacing`, `crossAxisAlignment`, `textBaseline`; `stretch` where a child fills), `Expanded` for a child that fills the main axis, `Stack` + `Positioned` for free children, `Text` with `TextStyle` (family, size, weight, style, height, letter spacing, decoration, alignment), `Image.asset` for images, `Opacity` for layer opacity, `SizedBox` for a capped subtree — and a `StatelessWidget` for a component (properties become constructor parameters with their defaults, instances are calls passing only what they change, variants become a Dart enum, swaps a `Widget` and slots a `List<Widget>?`). Code connect takes `flutter` too, with a Dart `import '…';` line. The Inspect panel's language picker (which iterates `CodeLang::ALL`) and the Connect to code note list it, and the 13 UI catalogues follow. Dev Mode breadth (~96%) and ready for real work (~72%) unchanged at this rounding; hours unchanged |
 | 2026-10-15 | minor | Dev Mode tail (gap 16): generated layer trees (React, Leptos, SwiftUI, Compose) start with the import lines of the connected components they call, once each, also those in a component's definition, in slots an instance fills and placed by a connected template's instance swaps; Compare changes takes any saved version as the before (`dev.compare {version}`, the view's Compare with menu; frames that aren't ready for dev compare with versions). Behaviour suite (5 tests; 4 failed before the fixes): the Dev Mode canvas only inspects (no moving, resizing, drawing, text or vector editing; menus, shortcuts, nudges, opacity keys and paste refuse design edits with a note; toolbar drawing tools go back to the design), the ready list filters and badges Changed items, statuses are refused on layers inside frames. Read-only plugins run from the Inspect tab show their panels (the runtime's panels, reused). Breadth 96% → 97% (measurements kept on the canvas and the read-only layers panel counted as missing), ready 72% → 76%, 0–1 h → 2–4 h |
 | 2026-10-12 | minor | Dev resources (gap 16): links for developers (a URL and a name) on any layer: `devResource.add` / `edit` / `remove` / `list`, undoable, saved and synced; an instance also lists its main component's (and that component's set's) links read-only with where they come from, and layers inside an instance show their main layer's; URLs are checked as web links (http or https, a host, no spaces, at most 2,048 characters) and never fetched (a link added without a name is named after its URL), opened only when clicked; the Inspect tab lists, adds, edits and removes them; `get_node` and `inspect_document` return them as `devResources`. The editor extension stays out of scope (the MCP server serves agents and editors). Dev Mode breadth 93% → 96%, ready 70% → 72%, 1–3 h → 0–1 h; feature breadth (~82%) and ready for real work (~51%) unchanged at this rounding; full parity ~304–593 h → ~303–591 h |
 | 2026-10-11 | minor | Export and inspect behaviour suite written from the public documentation (139 cases in 19 tests; 47 failed before the fixes) and its fixes: an export covers what the layer paints, so a drop shadow adds room only where it falls, strokes on boxes and ellipses reach their real width (they added up to four times as much), hidden layers take no room and a mask group exports the mask's area; a slice exports everything under it; slashes in layer names export into folders; Copy as PNG copies the whole selection. Added: the export settings' contents only and include bounding box, and for SVG outline text (off writes `<text>`), unique id attributes and simplified strokes (stroke attributes where exact); Inspect colour formats (hex, RGB, CSS, HSL, HSB), CSS in rem, a Blend row, positions measured from the frame around a layer (groups aren't frames), CSS for rotation, blend modes, gradient directions and kinds, text alignment, case and decoration; icons and images in the asset list (`file.exportLayers {assets}`). Dev Mode breadth 90% → 93%, ready 64% → 70%, hours unchanged (1–3, dev resources); feature breadth and ready for real work unchanged at this rounding |

docs/file-format-parity.md

@@ -57,7 +57,7 @@ export limit, not a native document nesting limit.
 | WebP | — | yes (ours) | | — |
 | Android Vector Drawable (XML) | — | yes (ours) | an `.xml` drawable resource (`file.export {format: "xml"}`, export settings, File ▸ Export…, the CLI and MCP), pretty-printed, sized in dp with the viewport in layer units, for AndroidX (VectorDrawableCompat: gradients and even-odd need API 24 without it). Shapes, booleans and text as path data with transforms baked in; solid fills and linear, radial and sweep gradients (`aapt:attr`, exact for any handles: radial and sweep in a `<group>` that maps the unit circle); centred strokes as stroke attributes where Android draws them the same (uniform scale, one cap, no dashes or variable width), other strokes as filled outlines; clipping frames and masks as `<group>` with `<clip-path>`; `android:name` from layer names with the id attribute option. What the format can't hold goes by the compatibility mode (`vdCompat`): best effort (default) applies layer opacity to each shape, rewrites even-odd fills and clip outlines as non-zero, draws diamond gradients as radial and alpha masks as outline clips, each with a warning; exact leaves out what it can't draw exactly, with a warning; ignore writes what maps without warnings: layer opacity over overlapping shapes is dropped (drawn opaque), even-odd fills keep `fillType="evenOdd"`, even-odd clip outlines clip as non-zero, diamond gradients are left out and alpha masks clip to their outline. Effects, image and pattern fills and blend modes are always left out (warned except in ignore); an export that draws nothing writes one empty path (Android refuses a drawable without a path), with a warning. Checked by parsing the XML, against FigCraft's renderer (gradients pixel by pixel), with `aapt2 compile` and `link`, and by rendering samples (linear, skewed radial and sweep gradients, a sweep with mirrored handles, even-odd booleans, centred and inside strokes, rotated text, a clipping frame, an alpha mask, a translucent group, each compatibility mode) with Android 13's (API 33) VectorDrawable on an emulator, next to FigCraft's PNG export: they match, including where the sweep starts and which way it turns, except what the compatibility mode and its warnings say (best effort: overlapping shapes in a translucent group look denser; exact and ignore leave out or draw opaque what they list). Not checked on API 21–23 (VectorDrawableCompat) | — |
 | Copy as CSS / SVG / PNG / text / link | yes | yes | Copy as PNG: the whole selection at 2x | — |
-| Dev Mode code (CSS, iOS SwiftUI, Android Compose) | yes | yes, plus HTML, React, Leptos and Vue | see [dev-mode-parity](dev-mode-parity.md) | — |
+| Dev Mode code (CSS, iOS SwiftUI, Android Compose) | yes | yes, plus HTML, React, Vue, Leptos, ArkUI and Flutter | see [dev-mode-parity](dev-mode-parity.md) | — |
 | `.fig` ("Save local copy") | yes | **experimental** | the whole file, also as a copy from File ▸ Save as… (the document keeps its `.figcraft` path and unsaved state); see [Export to `.fig`](#export-to-fig-experimental). Round trips through our own importer; written files checked by opening them in other software: layers, fills, gradients, strokes, shadows, vectors, components and text draw as in FigCraft; resized and scaled instances keep their size and lay their layers out for it, variables with their modes and colour bindings resolve there (a frame set to another mode shows that mode's colours, also inside instances), colour, text, effect and grid styles are listed, and variable-width strokes that are the same on both sides of the path draw with their width | 5–15 (non-colour bindings as bindings, checks of effects, images and prototypes, and against real files) |
 
 ### Export to `.fig` (experimental)

docs/gaps.md

@@ -382,7 +382,7 @@ No alpha blockers: the alpha gate in [`roadmap.md`](roadmap.md#alpha-gate) passe
 
 ### 16. Dev Mode: the tail after dev resources
 - **Landed (2026-10-11):** code connect: a component or set links to its code component per
-  language (React, Leptos, Vue, SwiftUI, Compose, ArkUI): an import path, the name and a template whose `{property}`
+  language (React, Leptos, Vue, SwiftUI, Compose, ArkUI, Flutter): an import path, the name and a template whose `{property}`
   and `{property ? "a" : "b"}` placeholders take the instance's values, escaped per language and
   never executed. `inspect.code`, `inspect.componentCode` and the Inspect panel show that snippet
   instead of generated code (inside generated layer trees too); the panel's Connect to code edits

docs/mcp.md

@@ -314,7 +314,7 @@ Or in a project's `.mcp.json`:
 | Tool | What it does |
 |---|---|
 | `list_commands {filter?}` | Every command: id, label, menu, shortcut, undoable, params doc. |
-| `run_command {command, params}` | Run any command (e.g. `align.left`, `layout.add`, `component.create`, `instance.place` (drop an instance at a page point into the frame or auto layout slot under it), `component.exposeInstance` / `instance.exposed` (nested instance properties on instances), `component.makeSlot` / `instance.slotInsert` / `instance.resetSlot` (slots, below), `inspect.code` (CSS, HTML + CSS for a whole frame, React, Leptos, Vue, SwiftUI, Jetpack Compose or ArkUI for a layer; components take their properties as parameters and instances are calls, see Dev Mode below), `inspect.properties` (layout, auto layout, typography, fills, strokes and effects with their style and variable names; `colorFormat`: hex, rgb, css, hsl or hsb), `inspect.assets` (layers under the selection with export settings, icons and images, each with its `kind`), `inspect.code` takes `unit: rem` and `rootFontSize` for CSS, HTML, React, Leptos and Vue, `style.create`, `variable.bind`, `variable.update` (rename, describe, scope), `variable.set` with `{alias}`, `variable.renameMode` / `variable.removeMode`, `variable.deleteCollection`, `proto.interaction.add`, `codeConnect.set` (components linked to real code, see Dev Mode below)). |
+| `run_command {command, params}` | Run any command (e.g. `align.left`, `layout.add`, `component.create`, `instance.place` (drop an instance at a page point into the frame or auto layout slot under it), `component.exposeInstance` / `instance.exposed` (nested instance properties on instances), `component.makeSlot` / `instance.slotInsert` / `instance.resetSlot` (slots, below), `inspect.code` (CSS, HTML + CSS for a whole frame, React, Leptos, Vue, SwiftUI, Jetpack Compose, ArkUI or Flutter for a layer; components take their properties as parameters and instances are calls, see Dev Mode below), `inspect.properties` (layout, auto layout, typography, fills, strokes and effects with their style and variable names; `colorFormat`: hex, rgb, css, hsl or hsb), `inspect.assets` (layers under the selection with export settings, icons and images, each with its `kind`), `inspect.code` takes `unit: rem` and `rootFontSize` for CSS, HTML, React, Leptos and Vue, `style.create`, `variable.bind`, `variable.update` (rename, describe, scope), `variable.set` with `{alias}`, `variable.renameMode` / `variable.removeMode`, `variable.deleteCollection`, `proto.interaction.add`, `codeConnect.set` (components linked to real code, see Dev Mode below)). |
 | `batch {commands: [{command, params}], label?}` | Several commands as one undo step (`command.batch`); all-or-nothing for open documents and their document state. Failed inner commands are removed from the journal; preferences, clipboard, tool state and UI requests are not rolled back. A step can use what an earlier step returned: name it with `"as": "card"` and `{"$ref": "card"}` anywhere in a later step's params becomes the `id` in its result (`{"$step": n}` does the same by zero-based position); `"field"` takes another key or a slash path such as `ids/0` (see Step references below). |
 | `create_node {type, x, y, width, height, parent, index, name, text, path, props}` | Create a frame, rectangle, ellipse, polygon, star, line, arrow, text, vector, section, component or slice; returns `{id, node}`. |
 | `set_properties {ids, props}` | `node.set` on layers (geometry, fills, strokes, effects, corner radius, auto layout, sizing, constraints, masks (`isMask`, `maskType: alpha\|vector\|luminance`), handoff status (`devStatus: none\|readyForDev\|completed`; marking again clears "Changed"), a section's `sectionContentsHidden`, text…); returns the updated layers. |
@@ -1529,16 +1529,16 @@ permissions: without it nothing is downloaded); `plugin.directory.publish {path
   same layer names, mobile layout) the code is mobile first: the mobile frame's classes, the
   desktop frame's that differ behind `lg:`, and layers only on desktop `hidden` plus `lg:flex`
   (auto layout frames) or `lg:block` (other layers).
-- **Component code:** `inspect.code {id, language: react|leptos|vue|swiftui|compose|arkui}` on a component,
+- **Component code:** `inspect.code {id, language: react|leptos|vue|swiftui|compose|arkui|flutter}` on a component,
   a component set or a variant writes the component as a reusable unit: React (TSX) with a props
   interface, Leptos with a `#[component]` function (`#[prop]` defaults, `view!` markup), Vue as a
   single-file component (`<template>`, a `<script setup>` with `defineProps` and its defaults, a
   `<style scoped>`; a slot layer is Vue's own `<slot>`, so it takes no prop), SwiftUI
   with a `View` struct, Compose with a `@Composable` function, ArkUI with a `@Component` ArkTS
-  struct (`@Prop` parameters, `@BuilderParam` for swaps and slots). Its component properties are the
+  struct (`@Prop` parameters, `@BuilderParam` for swaps and slots), Flutter with a `StatelessWidget`. Its component properties are the
   parameters, with their defaults: variant properties become string unions (React, Vue) or enums,
   booleans become flags around the layers they show, text properties strings, instance swaps views
-  (`React.ReactNode`, Leptos `ViewFn`, `AnyView`, a composable lambda, an ArkUI builder) and slots
+  (`React.ReactNode`, Leptos `ViewFn`, `AnyView`, a composable lambda, an ArkUI builder, a `Widget`) and slots
   optional content.
   Every variant of a set shares one definition; in React, Vue and Leptos the other variants'
   differences become CSS rules on `data-*` attributes. A Vue template holds no arbitrary
@@ -1549,13 +1549,13 @@ permissions: without it nothing is downloaded); `plugin.directory.publish {path
   state="Hover" label="Buy" />`, `<Button state=ButtonState::Hover label="Buy" />`,
   `<Button state="Hover" />`, `Button(state:
   .hover, label: "Buy")`, `Button(state = ButtonState.Hover, label = "Buy")`, `Button({ state:
-  ButtonState.Hover, label: "Buy" })`. Names are escaped and
+  ButtonState.Hover, label: "Buy" })`, `Button(state: ButtonState.hover, label: "Buy")`. Names are escaped and
   unique (keywords get a suffix, `default` → `defaultValue`, Rust's `type` → `type_`; Leptos names
-  are snake_case; names that would shadow framework types get one too, `Text` → `TextComponent`). `inspect.componentCode
+  are snake_case, Dart enum members lowerCamel; names that would shadow framework types get one too, `Text` → `TextComponent`). `inspect.componentCode
   {id?, language?}` returns the parts: `{component, name, set, properties: [{name, param, type,
   default, value? (instances)}], definition, usage? (instances)}`.
 - **Code connect:** link a component (a variant links its set) to the code component it is built
-  as, per language (`react`, `leptos`, `vue`, `swiftui`, `compose`, `arkui`): `codeConnect.set {id?, language?, importPath?,
+  as, per language (`react`, `leptos`, `vue`, `swiftui`, `compose`, `arkui`, `flutter`): `codeConnect.set {id?, language?, importPath?,
   name?, template?}` (undoable; fields left out keep their value; the defaults are the generated
   name and a call passing every property) → `{component, language, code, unknown}`. Templates are
   text, never executed: `{property}` (its name or parameter name) is the instance's value escaped

docs/target-app-parity.md

@@ -623,7 +623,7 @@ Carried over from the ROADMAP's "Shipped so far" (2026-10-10). The test count th
   toolbar with flyouts and mode switcher, Design / Prototype / Inspect panels (Dev Mode: properties with their styles and variables, annotations
   with pinned properties and categories drawn as coloured callouts on the canvas (filtered by category),
   a ready-for-dev list, a focus view on one frame with previous / next, Compare changes since a frame
-  was marked ready (before / after side by side or overlaid, property-level diffs), CSS/HTML/React/Vue/SwiftUI/Compose/ArkUI
+  was marked ready (before / after side by side or overlaid, property-level diffs), CSS/HTML/React/Vue/Leptos/SwiftUI/Compose/ArkUI/Flutter
   code where components take their properties as parameters and instances are calls, components
   connected to their code components showing the real snippet, read-only plugins), colour picker
   (HSB square, hue/alpha, hex, gradient stops, image fills), main menu generated from the catalog,