Feat: refactoring codebase

crates/ratatui/src/theme/palette.rs

@@ -0,0 +1,55 @@
+use ratatui::style::Color;
+
+pub type Rgb = (u8, u8, u8);
+
+pub struct Palette {
+    // Core
+    pub bg: Rgb,
+    pub surface: Rgb,
+    pub surface2: Rgb,
+    pub fg: Rgb,
+    pub fg_dim: Rgb,
+    pub fg_muted: Rgb,
+    // Semantic accents
+    pub accent: Rgb,
+    pub red: Rgb,
+    pub green: Rgb,
+    pub yellow: Rgb,
+    pub blue: Rgb,
+    pub purple: Rgb,
+    pub cyan: Rgb,
+    pub orange: Rgb,
+    // Role assignments
+    pub tempo_color: Rgb,
+    pub bank_color: Rgb,
+    pub pattern_color: Rgb,
+    pub title_accent: Rgb,
+    pub title_author: Rgb,
+    pub secondary: Rgb,
+    // Arrays
+    pub link_bright: [Rgb; 5],
+    pub link_dim: [Rgb; 5],
+    pub sparkle: [Rgb; 5],
+    pub meter: [Rgb; 3],
+}
+
+pub fn rgb(c: Rgb) -> Color {
+    Color::Rgb(c.0, c.1, c.2)
+}
+
+pub fn tint(bg: Rgb, accent: Rgb, amount: f32) -> Rgb {
+    let mix = |b: u8, a: u8| -> u8 {
+        let v = b as f32 + (a as f32 - b as f32) * amount;
+        v.clamp(0.0, 255.0) as u8
+    };
+    (mix(bg.0, accent.0), mix(bg.1, accent.1), mix(bg.2, accent.2))
+}
+
+pub fn mid(a: Rgb, b: Rgb, t: f32) -> Rgb {
+    tint(a, b, t)
+}
+
+pub fn darken(c: Rgb, amount: f32) -> Rgb {
+    let d = |v: u8| -> u8 { (v as f32 * (1.0 - amount)).clamp(0.0, 255.0) as u8 };
+    (d(c.0), d(c.1), d(c.2))
+}