add toast

crates/theme/src/colors.rs

@@ -29,6 +29,10 @@ pub struct ColorTokens {
     pub accent_foreground: Hsla,
     pub destructive: Hsla,
     pub destructive_foreground: Hsla,
+    pub success: Hsla,
+    pub success_foreground: Hsla,
+    pub warning: Hsla,
+    pub warning_foreground: Hsla,
     pub border: Hsla,
     pub input: Hsla,
     pub ring: Hsla,
@@ -57,6 +61,10 @@ impl ColorTokens {
             accent_foreground: hex(0xffffff),
             destructive: hex(0xdc2626),
             destructive_foreground: hex(0xffffff),
+            success: hex(0x16a34a),
+            success_foreground: hex(0xffffff),
+            warning: hex(0xd97706),
+            warning_foreground: hex(0xffffff),
             border: hex(0xe4e4e7),
             input: hex(0xe4e4e7),
             ring: hex(0x93c5fd),
@@ -84,6 +92,10 @@ impl ColorTokens {
             accent_foreground: hex(0xffffff),
             destructive: hex(0xef4444),
             destructive_foreground: hex(0xffffff),
+            success: hex(0x22c55e),
+            success_foreground: hex(0x052e16),
+            warning: hex(0xf59e0b),
+            warning_foreground: hex(0x451a03),
             border: hex(0x27272a),
             input: hex(0x27272a),
             ring: hex(0x1d4ed8),

crates/theme/src/definition.rs

@@ -25,6 +25,10 @@ pub struct ThemeDefinition {
     pub muted_foreground: Option<String>,
     pub destructive: Option<String>,
     pub destructive_foreground: Option<String>,
+    pub success: Option<String>,
+    pub success_foreground: Option<String>,
+    pub warning: Option<String>,
+    pub warning_foreground: Option<String>,
     pub border: Option<String>,
     pub input: Option<String>,
     pub ring: Option<String>,
@@ -94,6 +98,22 @@ impl ThemeDefinition {
         parse_hex(self.destructive_foreground.as_deref()?)
     }
 
+    pub fn success(&self) -> Option<Hsla> {
+        parse_hex(self.success.as_deref()?)
+    }
+
+    pub fn success_foreground(&self) -> Option<Hsla> {
+        parse_hex(self.success_foreground.as_deref()?)
+    }
+
+    pub fn warning(&self) -> Option<Hsla> {
+        parse_hex(self.warning.as_deref()?)
+    }
+
+    pub fn warning_foreground(&self) -> Option<Hsla> {
+        parse_hex(self.warning_foreground.as_deref()?)
+    }
+
     pub fn border(&self) -> Option<Hsla> {
         parse_hex(self.border.as_deref()?)
     }

crates/theme/src/resolve.rs

@@ -10,6 +10,8 @@ pub struct Ramps {
     pub primary: AccentShades,
     pub secondary: AccentShades,
     pub destructive: AccentShades,
+    pub success: AccentShades,
+    pub warning: AccentShades,
 }
 
 /// Everything a component paints from, after the overlay chain.
@@ -58,6 +60,16 @@ pub(crate) fn resolve(
         system_palette.destructive,
         base.destructive,
     );
+    let success = pick(
+        def_color(|d| d.success()),
+        system_palette.success,
+        base.success,
+    );
+    let warning = pick(
+        def_color(|d| d.warning()),
+        system_palette.warning,
+        base.warning,
+    );
 
     let mut colors = ColorTokens {
         background: pick(
@@ -114,6 +126,18 @@ pub(crate) fn resolve(
             None,
             contrast_foreground(destructive),
         ),
+        success: pick(def_color(|d| d.success()), None, base.success),
+        success_foreground: pick(
+            def_color(|d| d.success_foreground()),
+            None,
+            contrast_foreground(success),
+        ),
+        warning: pick(def_color(|d| d.warning()), None, base.warning),
+        warning_foreground: pick(
+            def_color(|d| d.warning_foreground()),
+            None,
+            contrast_foreground(warning),
+        ),
         border: pick(
             def_color(|d| d.border()),
             system_palette.border,
@@ -182,6 +206,8 @@ pub(crate) fn resolve(
                 colors.background,
                 variant == ThemeVariant::Dark,
             ),
+            success: derive_shades(success, colors.background, variant == ThemeVariant::Dark),
+            warning: derive_shades(warning, colors.background, variant == ThemeVariant::Dark),
         },
         colors,
         radius,

crates/theme/src/source/macos.rs

@@ -81,6 +81,8 @@ impl MacosSource {
             muted: None,
             muted_foreground: Self::color_to_hsla(&NSColor::secondaryLabelColor()),
             destructive: Self::color_to_hsla(&NSColor::systemRedColor()),
+            success: None,
+            warning: None,
             border: Self::color_to_hsla(&NSColor::separatorColor()),
             input: Self::color_to_hsla(&NSColor::controlBackgroundColor()),
             ring: Self::color_to_hsla(&NSColor::keyboardFocusIndicatorColor()),

crates/theme/src/system.rs

@@ -43,6 +43,9 @@ pub struct PartialPalette {
     pub muted: Option<Hsla>,
     pub muted_foreground: Option<Hsla>,
     pub destructive: Option<Hsla>,
+    /// No platform states severity colors; presets override them.
+    pub success: Option<Hsla>,
+    pub warning: Option<Hsla>,
     pub border: Option<Hsla>,
     pub input: Option<Hsla>,
     pub ring: Option<Hsla>,