chore: initial studio-theme-sunflower 0.1.0

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

src/lib.rs

@@ -0,0 +1,93 @@
+//! `studio.theme.sunflower` — warm, optimistic Studio theme.
+//!
+//! Yellow / amber / cream tones designed to feel like working
+//! at a sunlit kitchen table. Pairs a saturated amber primary
+//! with deep walnut text in light mode; a golden-amber primary
+//! over a near-black surface in dark mode.
+
+#![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;
+
+/// 14 ARGB tokens, Material 3 order. See the SDK docs for
+/// the canonical slot ordering.
+const SUNFLOWER_LIGHT: [u32; 14] = [
+    0xFFFFB300, // primary           — amber 600
+    0xFF1B1300, // on_primary        — espresso
+    0xFFFF6F00, // secondary         — orange 900
+    0xFF1B1300, // on_secondary
+    0xFF8BC34A, // tertiary          — leaf green
+    0xFF1B2900, // on_tertiary
+    0xFFC62828, // error
+    0xFFFFFFFF, // on_error
+    0xFFFFFAF0, // surface           — floral white
+    0xFF2C1F00, // on_surface        — dark walnut
+    0xFFFFF3D6, // surface_variant   — light cream
+    0xFF6B4F00, // on_surface_variant
+    0xFFC9A86B, // outline
+    0xFFE6D6A8, // outline_variant
+];
+
+const SUNFLOWER_DARK: [u32; 14] = [
+    0xFFFFCA28, // primary           — amber 400
+    0xFF2C1F00, // on_primary
+    0xFFFFA726, // secondary         — orange 400
+    0xFF2C1F00, // on_secondary
+    0xFFAED581, // tertiary          — light green 300
+    0xFF1B2900, // on_tertiary
+    0xFFEF5350, // error
+    0xFF2C0000, // on_error
+    0xFF1F1700, // surface           — deep amber-brown
+    0xFFFFE7A8, // on_surface
+    0xFF332507, // surface_variant
+    0xFFC9A86B, // on_surface_variant
+    0xFF806E40, // outline
+    0xFF4A3D14, // outline_variant
+];
+
+struct SunflowerPlugin;
+
+impl bindings::exports::fai::studio_plugin::theme::Guest for SunflowerPlugin {
+    fn theme_for(brightness: String) -> Result<ColorScheme, PluginError> {
+        let tokens = match brightness.as_str() {
+            "light" => SUNFLOWER_LIGHT.to_vec(),
+            "dark" => SUNFLOWER_DARK.to_vec(),
+            other => {
+                return Err(PluginError::Declined(format!(
+                    "sunflower has no scheme for brightness '{other}' \
+                     (supported: light, dark)"
+                )));
+            }
+        };
+        Ok(ColorScheme { brightness, tokens })
+    }
+}
+
+impl bindings::exports::fai::studio_plugin::translate::Guest for SunflowerPlugin {
+    fn translate(
+        _text: String,
+        _from_locale: String,
+        _to_locale: String,
+    ) -> Result<String, PluginError> {
+        Err(PluginError::Declined(
+            "sunflower is a theme plugin and does not translate".to_string(),
+        ))
+    }
+}
+
+impl bindings::exports::fai::studio_plugin::output_view::Guest for SunflowerPlugin {
+    fn render(
+        _mime_type: String,
+        _data: Vec<u8>,
+    ) -> Result<RenderedOutput, PluginError> {
+        Err(PluginError::Declined(
+            "sunflower is a theme plugin and does not render outputs".to_string(),
+        ))
+    }
+}
+
+export_plugin!(SunflowerPlugin);