chore: initial studio-theme-sunset 0.1.0

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

.gitignore

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+target/
+Cargo.lock

Cargo.toml

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+# Standalone Cargo.toml — targets wasm32-wasip2.
+#
+# Build:
+#   cargo build --release --target wasm32-wasip2
+#
+# Output: target/wasm32-wasip2/release/studio_theme_sunset.wasm
+
+[package]
+name = "studio_theme_sunset"
+version = "0.1.0"
+edition = "2021"
+authors = ["Dr. Stefan Flemming <platform@flemming.ai>"]
+license = "Apache-2.0"
+publish = false
+description = "F∆I Studio plugin — Dusky pink / orange / violet Studio theme."
+repository = "https://git.flemming.ai/fai-plugins/studio-theme-sunset"
+rust-version = "1.85"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+fai-plugin-sdk = { path = "../../fai_plugin_sdk_rust" }
+
+[package.metadata.component]
+package = "fai:studio-plugin"
+
+[profile.release]
+opt-level = "s"
+lto = true
+codegen-units = 1
+strip = true

MODULE.de.md

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+# sunset
+
+Sonnenuntergangs-Look in Pink / Orange / Violett.
+
+Eines der mit F∆I Studio gelieferten Theme-Plugins. Nach
+Installation erscheint es unter **Einstellungen → Themes**
+neben den eingebauten Hell- und Dunkel-Themes. Auswahl
+schaltet die gesamte Studio-Oberfläche um — ohne Neustart.

MODULE.md

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+# sunset
+
+Dusky pink / orange / violet Studio theme.
+
+This is one of F∆I Studio's bundled theme plugins. When
+installed, it appears in **Settings → Themes** alongside the
+built-in light and dark themes. Select it and the entire
+Studio UI re-themes immediately — no restart required.
+
+## When to pick this theme
+
+- Demo presentations — the palette photographs well
+- Onboarding sessions where you want the UI to feel
+  welcoming rather than enterprise
+- Operators who simply prefer warmer tones over cool ones
+
+Pink primary, orange secondary, purple tertiary. The
+gradient feel matches FaiEditorStyle.modern (gradient
+canvas backdrop) particularly well.

README.md

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+# studio-theme-sunset
+
+Dusky pink / orange / violet Studio theme.
+
+Ships a Material 3 ColorScheme pair (light + dark) through
+the WIT `theme` export. Studio loads it as a
+`studio.theme.sunset` capability and switches the app's
+ColorScheme when the operator picks it from the themes
+picker.
+
+## Build
+
+```bash
+cargo build --release --target wasm32-wasip2
+```
+
+Output: `target/wasm32-wasip2/release/studio_theme_sunset.wasm`.
+
+## Palette
+
+See `src/lib.rs` for the 14 ARGB tokens per brightness, in
+Material 3 order (primary → on_primary → … → outline_variant).

module.yaml

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+schema_version: 3
+provider: fai
+name: studio-theme-sunset
+version: 0.1.0
+
+provides:
+  - capability: studio.theme.sunset
+    version: 0.1.0
+
+inputs: {}
+outputs: {}
+
+permissions: []
+
+studio_extension:
+  hooks:
+    - theme

rust-toolchain.toml

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+[toolchain]
+channel = "1.86"
+targets = ["wasm32-wasip2"]
+components = ["rustfmt", "clippy"]

src/lib.rs

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+//! `studio.theme.sunset` — warm dusk Studio theme.
+//!
+//! Pink / orange / violet gradient feel. Reads like the sky
+//! 20 minutes after sunset: still bright at the horizon,
+//! purple settling in above. Light mode keeps a warm-white
+//! surface; dark mode drops into a deep mulberry navy.
+
+#![allow(clippy::result_large_err)]
+
+use fai_plugin_sdk::{bindings, export_plugin};
+
+type ColorScheme = bindings::fai::studio_plugin::plugin_types::ColorScheme;
+type PluginError = bindings::fai::studio_plugin::plugin_types::PluginError;
+type RenderedOutput = bindings::fai::studio_plugin::plugin_types::RenderedOutput;
+
+const SUNSET_LIGHT: [u32; 14] = [
+    0xFFE91E63, // primary           — pink 500
+    0xFFFFFFFF, // on_primary
+    0xFFFF7043, // secondary         — deep orange 400
+    0xFFFFFFFF, // on_secondary
+    0xFF8E24AA, // tertiary          — purple 600
+    0xFFFFFFFF, // on_tertiary
+    0xFFC62828, // error
+    0xFFFFFFFF, // on_error
+    0xFFFFF5F0, // surface           — warm whitespace
+    0xFF38121F, // on_surface
+    0xFFFFDDD0, // surface_variant
+    0xFF804040, // on_surface_variant
+    0xFFC97070, // outline
+    0xFFE6BFB5, // outline_variant
+];
+
+const SUNSET_DARK: [u32; 14] = [
+    0xFFF48FB1, // primary           — pink 200
+    0xFF38121F, // on_primary
+    0xFFFFAB91, // secondary         — deep orange 200
+    0xFF381200, // on_secondary
+    0xFFCE93D8, // tertiary          — purple 200
+    0xFF38003A, // on_tertiary
+    0xFFEF5350, // error
+    0xFF1A0000, // on_error
+    0xFF2A0F1F, // surface           — dark sunset
+    0xFFFFD6E0, // on_surface
+    0xFF4A2030, // surface_variant
+    0xFFE6BFB5, // on_surface_variant
+    0xFF806060, // outline
+    0xFF4A2D38, // outline_variant
+];
+
+struct SunsetPlugin;
+
+impl bindings::exports::fai::studio_plugin::theme::Guest for SunsetPlugin {
+    fn theme_for(brightness: String) -> Result<ColorScheme, PluginError> {
+        let tokens = match brightness.as_str() {
+            "light" => SUNSET_LIGHT.to_vec(),
+            "dark" => SUNSET_DARK.to_vec(),
+            other => {
+                return Err(PluginError::Declined(format!(
+                    "sunset has no scheme for brightness '{other}' \
+                     (supported: light, dark)"
+                )));
+            }
+        };
+        Ok(ColorScheme { brightness, tokens })
+    }
+}
+
+impl bindings::exports::fai::studio_plugin::translate::Guest for SunsetPlugin {
+    fn translate(
+        _text: String,
+        _from_locale: String,
+        _to_locale: String,
+    ) -> Result<String, PluginError> {
+        Err(PluginError::Declined(
+            "sunset is a theme plugin and does not translate".to_string(),
+        ))
+    }
+}
+
+impl bindings::exports::fai::studio_plugin::output_view::Guest for SunsetPlugin {
+    fn render(
+        _mime_type: String,
+        _data: Vec<u8>,
+    ) -> Result<RenderedOutput, PluginError> {
+        Err(PluginError::Declined(
+            "sunset is a theme plugin and does not render outputs".to_string(),
+        ))
+    }
+}
+
+export_plugin!(SunsetPlugin);