feat(themes): add custom base16 theme variant

This commit adds a custom Base16 theme variant and plumbs it throughout
the komorebi and komorebi-bar packages.

komorebi-bar/src/config.rs

@@ -373,7 +373,7 @@ impl From<Position> for Pos2 {
     }
 }
 
-#[derive(Copy, Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 #[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
 #[serde(tag = "palette")]
 pub enum KomobarTheme {
@@ -389,6 +389,12 @@ pub enum KomobarTheme {
         name: komorebi_themes::Base16,
         accent: Option<komorebi_themes::Base16Value>,
     },
+    /// A custom Base16 theme
+    Custom {
+        /// Colours of the custom Base16 theme palette
+        colours: Box<komorebi_themes::Base16ColourPalette>,
+        accent: Option<komorebi_themes::Base16Value>,
+    },
 }
 
 impl From<KomorebiTheme> for KomobarTheme {
@@ -406,6 +412,14 @@ impl From<KomorebiTheme> for KomobarTheme {
                 name,
                 accent: bar_accent,
             },
+            KomorebiTheme::Custom {
+                colours,
+                bar_accent,
+                ..
+            } => Self::Custom {
+                colours,
+                accent: bar_accent,
+            },
         }
     }
 }