dracula theme

examples/common/mod.rs

@@ -60,6 +60,8 @@ fn parse_args() -> Args {
             "frappe" => args.style = Some(Style::catppuccin_frappe()),
             "macchiato" => args.style = Some(Style::catppuccin_macchiato()),
             "mocha" => args.style = Some(Style::catppuccin_mocha()),
+            "dracula" => args.style = Some(Style::dracula()),
+            "alucard" => args.style = Some(Style::alucard()),
             "catppuccin-latte" => args.style = Some(Style::catppuccin_latte()),
             "catppuccin-frappe" => args.style = Some(Style::catppuccin_frappe()),
             "catppuccin-macchiato" => args.style = Some(Style::catppuccin_macchiato()),

src/style.rs

@@ -1,6 +1,7 @@
 //! Style definitions for lines, fills, markers, and themes.
 mod catppuccin;
 pub(crate) mod defaults;
+mod dracula;
 pub mod series;
 pub mod theme;
 
@@ -74,6 +75,22 @@ impl Style {
         }
     }
 
+    /// Create a Dracula theme and palette
+    pub const fn dracula() -> Self {
+        Style {
+            theme: Theme::Dracula,
+            palette: Palette::Dracula,
+        }
+    }
+
+    /// Create an Alucard theme and palette
+    pub const fn alucard() -> Self {
+        Style {
+            theme: Theme::Alucard,
+            palette: Palette::Alucard,
+        }
+    }
+
     /// Create a Catppuccin Mocha theme and palette
     pub const fn catppuccin_mocha() -> Self {
         Style {

src/style/dracula.rs

@@ -0,0 +1,84 @@
+use plotive_base::Rgba8;
+
+use crate::style;
+
+/// Dracula theme
+#[derive(Debug, Clone, Copy)]
+pub struct Dracula;
+
+/// Alucard theme
+#[derive(Debug, Clone, Copy)]
+pub struct Alucard;
+
+pub trait Colors {
+    const BACKGROUND: Rgba8;
+    const _CURRENT_LINE: Rgba8;
+    const SELECTION: Rgba8;
+    const FOREGROUND: Rgba8;
+    const _COMMENT: Rgba8;
+    const CYAN: Rgba8;
+    const GREEN: Rgba8;
+    const ORANGE: Rgba8;
+    const PINK: Rgba8;
+    const PURPLE: Rgba8;
+    const RED: Rgba8;
+    const YELLOW: Rgba8;
+}
+
+pub const fn theme_palette<C>() -> style::theme::ThemePalette
+where
+    C: Colors,
+{
+    style::theme::ThemePalette {
+        background: C::BACKGROUND,
+        foreground: C::FOREGROUND,
+        grid: C::FOREGROUND,
+        legend_fill: C::SELECTION,
+        legend_border: C::FOREGROUND,
+    }
+}
+
+pub const fn series_colors<F>() -> &'static [Rgba8]
+where
+    F: Colors,
+{
+    &[
+        F::CYAN,
+        F::RED,
+        F::YELLOW,
+        F::PINK,
+        F::PURPLE,
+        F::GREEN,
+        F::ORANGE,
+    ]
+}
+
+impl Colors for Dracula {
+    const BACKGROUND: Rgba8 = Rgba8::from_hex(b"#282a36");
+    const _CURRENT_LINE: Rgba8 = Rgba8::from_hex(b"#44475a");
+    const SELECTION: Rgba8 = Rgba8::from_hex(b"#44475a");
+    const FOREGROUND: Rgba8 = Rgba8::from_hex(b"#f8f8f2");
+    const _COMMENT: Rgba8 = Rgba8::from_hex(b"#6272a4");
+    const CYAN: Rgba8 = Rgba8::from_hex(b"#8be9fd");
+    const GREEN: Rgba8 = Rgba8::from_hex(b"#50fa7b");
+    const ORANGE: Rgba8 = Rgba8::from_hex(b"#ffb86c");
+    const PINK: Rgba8 = Rgba8::from_hex(b"#ff79c6");
+    const PURPLE: Rgba8 = Rgba8::from_hex(b"#bd93f9");
+    const RED: Rgba8 = Rgba8::from_hex(b"#ff5555");
+    const YELLOW: Rgba8 = Rgba8::from_hex(b"#f1fa8c");
+}
+
+impl Colors for Alucard {
+    const BACKGROUND: Rgba8 = Rgba8::from_hex(b"#fffbeb");
+    const _CURRENT_LINE: Rgba8 = Rgba8::from_hex(b"#6c664b");
+    const SELECTION: Rgba8 = Rgba8::from_hex(b"#cfcfde");
+    const FOREGROUND: Rgba8 = Rgba8::from_hex(b"#1f1f1f");
+    const _COMMENT: Rgba8 = Rgba8::from_hex(b"#6c664b");
+    const CYAN: Rgba8 = Rgba8::from_hex(b"#036a96");
+    const GREEN: Rgba8 = Rgba8::from_hex(b"#14710a");
+    const ORANGE: Rgba8 = Rgba8::from_hex(b"#a34d14");
+    const PINK: Rgba8 = Rgba8::from_hex(b"#a3144d");
+    const PURPLE: Rgba8 = Rgba8::from_hex(b"#644ac9");
+    const RED: Rgba8 = Rgba8::from_hex(b"#cb3a2a");
+    const YELLOW: Rgba8 = Rgba8::from_hex(b"#846e15");
+}

src/style/series.rs

@@ -1,7 +1,7 @@
 /*!
  * This module deals with colors and style of data series.
  */
-use crate::style::{self, catppuccin, defaults};
+use crate::style::{self, catppuccin, defaults, dracula};
 use crate::{ResolveColor, Rgba8};
 
 /// A palette for data series.
@@ -21,6 +21,10 @@ pub enum Palette {
     TolBright,
     /// Okabe & Ito colorblind-safe palette
     OkabeIto,
+    /// Dracula palette
+    Dracula,
+    /// Alucard palette
+    Alucard,
     /// Catppuccin Mocha palette
     CatppuccinMocha,
     /// Catppuccin Macchiato palette
@@ -42,6 +46,8 @@ impl Palette {
             Palette::Pastel => palettes::PASTEL,
             Palette::TolBright => palettes::TOL_BRIGHT,
             Palette::OkabeIto => palettes::OKABE_ITO,
+            Palette::Dracula => dracula::series_colors::<dracula::Dracula>(),
+            Palette::Alucard => dracula::series_colors::<dracula::Alucard>(),
             Palette::CatppuccinMocha => catppuccin::series_colors::<catppuccin::Mocha>(),
             Palette::CatppuccinMacchiato => catppuccin::series_colors::<catppuccin::Macchiato>(),
             Palette::CatppuccinFrappe => catppuccin::series_colors::<catppuccin::Frappe>(),

src/style/theme.rs

@@ -1,7 +1,7 @@
 //! Theme definitions and implementations
 
 use crate::color::{self, Rgb8, Rgba8};
-use crate::style::catppuccin;
+use crate::style::{catppuccin, dracula};
 use crate::{style, text};
 
 /// A theme, for styling figures
@@ -12,6 +12,10 @@ pub enum Theme {
     Light,
     /// Dark theme
     Dark,
+    /// Dracula theme
+    Dracula,
+    /// Alucard theme (Dracula light)
+    Alucard,
     /// Catppuccin Mocha theme
     CatppuccinMocha,
     /// Catppuccin Macchiato theme
@@ -55,6 +59,8 @@ impl Theme {
         match self {
             Theme::Light => &ThemePalette::LIGHT,
             Theme::Dark => &ThemePalette::DARK,
+            Theme::Dracula => &ThemePalette::DRACULA,
+            Theme::Alucard => &ThemePalette::ALUCARD,
             Theme::CatppuccinLatte => &ThemePalette::CATPPUCCIN_LATTE,
             Theme::CatppuccinFrappe => &ThemePalette::CATPPUCCIN_FRAPPE,
             Theme::CatppuccinMacchiato => &ThemePalette::CATPPUCCIN_MACCHIATO,
@@ -104,6 +110,12 @@ impl ThemePalette {
         legend_border: color::WHITE,
     };
 
+    /// The Dracula built-in theme palette
+    pub const DRACULA: Self = dracula::theme_palette::<dracula::Dracula>();
+
+    /// The Alucard built-in theme palette
+    pub const ALUCARD: Self = dracula::theme_palette::<dracula::Alucard>();
+
     /// The catppuccin mocha built-in theme palette
     pub const CATPPUCCIN_MOCHA: Self = catppuccin::theme_palette::<catppuccin::Mocha>();