Module: AsciinemaWin::Themes

Defined in:
lib/asciinema_win/themes.rb

Overview

Terminal color themes for SVG/HTML export

Provides color palettes for rendering terminal output in various popular themes like Dracula, Monokai, Solarized, etc.

Defined Under Namespace

Classes: Theme

Constant Summary collapse

ASCIINEMA =

Default asciinema theme

Theme.new(
  name: "asciinema",
  background: "#121314",
  foreground: "#cccccc",
  cursor: "#cccccc",
  palette: [
    "#000000", # Black
    "#dd3c69", # Red
    "#4ebf22", # Green
    "#ddaf3c", # Yellow
    "#26b0d7", # Blue
    "#b954e1", # Magenta
    "#54e1b9", # Cyan
    "#d9d9d9", # White
    "#4d4d4d", # Bright Black
    "#dd3c69", # Bright Red
    "#4ebf22", # Bright Green
    "#ddaf3c", # Bright Yellow
    "#26b0d7", # Bright Blue
    "#b954e1", # Bright Magenta
    "#54e1b9", # Bright Cyan
    "#ffffff"  # Bright White
  ]
).freeze
DRACULA =

Dracula theme

Theme.new(
  name: "dracula",
  background: "#282a36",
  foreground: "#f8f8f2",
  cursor: "#f8f8f2",
  palette: [
    "#21222c", # Black
    "#ff5555", # Red
    "#50fa7b", # Green
    "#f1fa8c", # Yellow
    "#bd93f9", # Blue
    "#ff79c6", # Magenta
    "#8be9fd", # Cyan
    "#f8f8f2", # White
    "#6272a4", # Bright Black
    "#ff6e6e", # Bright Red
    "#69ff94", # Bright Green
    "#ffffa5", # Bright Yellow
    "#d6acff", # Bright Blue
    "#ff92df", # Bright Magenta
    "#a4ffff", # Bright Cyan
    "#ffffff"  # Bright White
  ]
).freeze
MONOKAI =

Monokai theme

Theme.new(
  name: "monokai",
  background: "#272822",
  foreground: "#f8f8f2",
  cursor: "#f8f8f2",
  palette: [
    "#272822", # Black
    "#f92672", # Red
    "#a6e22e", # Green
    "#f4bf75", # Yellow
    "#66d9ef", # Blue
    "#ae81ff", # Magenta
    "#a1efe4", # Cyan
    "#f8f8f2", # White
    "#75715e", # Bright Black
    "#f92672", # Bright Red
    "#a6e22e", # Bright Green
    "#f4bf75", # Bright Yellow
    "#66d9ef", # Bright Blue
    "#ae81ff", # Bright Magenta
    "#a1efe4", # Bright Cyan
    "#f9f8f5"  # Bright White
  ]
).freeze
SOLARIZED_DARK =

Solarized Dark theme

Theme.new(
  name: "solarized-dark",
  background: "#002b36",
  foreground: "#839496",
  cursor: "#839496",
  palette: [
    "#073642", # Black
    "#dc322f", # Red
    "#859900", # Green
    "#b58900", # Yellow
    "#268bd2", # Blue
    "#d33682", # Magenta
    "#2aa198", # Cyan
    "#eee8d5", # White
    "#002b36", # Bright Black
    "#cb4b16", # Bright Red
    "#586e75", # Bright Green
    "#657b83", # Bright Yellow
    "#839496", # Bright Blue
    "#6c71c4", # Bright Magenta
    "#93a1a1", # Bright Cyan
    "#fdf6e3"  # Bright White
  ]
).freeze
SOLARIZED_LIGHT =

Solarized Light theme

Theme.new(
  name: "solarized-light",
  background: "#fdf6e3",
  foreground: "#657b83",
  cursor: "#657b83",
  palette: [
    "#073642", # Black
    "#dc322f", # Red
    "#859900", # Green
    "#b58900", # Yellow
    "#268bd2", # Blue
    "#d33682", # Magenta
    "#2aa198", # Cyan
    "#eee8d5", # White
    "#002b36", # Bright Black
    "#cb4b16", # Bright Red
    "#586e75", # Bright Green
    "#657b83", # Bright Yellow
    "#839496", # Bright Blue
    "#6c71c4", # Bright Magenta
    "#93a1a1", # Bright Cyan
    "#fdf6e3"  # Bright White
  ]
).freeze
NORD =

Nord theme

Theme.new(
  name: "nord",
  background: "#2e3440",
  foreground: "#d8dee9",
  cursor: "#d8dee9",
  palette: [
    "#3b4252", # Black
    "#bf616a", # Red
    "#a3be8c", # Green
    "#ebcb8b", # Yellow
    "#81a1c1", # Blue
    "#b48ead", # Magenta
    "#88c0d0", # Cyan
    "#e5e9f0", # White
    "#4c566a", # Bright Black
    "#bf616a", # Bright Red
    "#a3be8c", # Bright Green
    "#ebcb8b", # Bright Yellow
    "#81a1c1", # Bright Blue
    "#b48ead", # Bright Magenta
    "#8fbcbb", # Bright Cyan
    "#eceff4"  # Bright White
  ]
).freeze
ONE_DARK =

One Dark theme (Atom)

Theme.new(
  name: "one-dark",
  background: "#282c34",
  foreground: "#abb2bf",
  cursor: "#528bff",
  palette: [
    "#282c34", # Black
    "#e06c75", # Red
    "#98c379", # Green
    "#e5c07b", # Yellow
    "#61afef", # Blue
    "#c678dd", # Magenta
    "#56b6c2", # Cyan
    "#abb2bf", # White
    "#545862", # Bright Black
    "#e06c75", # Bright Red
    "#98c379", # Bright Green
    "#e5c07b", # Bright Yellow
    "#61afef", # Bright Blue
    "#c678dd", # Bright Magenta
    "#56b6c2", # Bright Cyan
    "#c8ccd4"  # Bright White
  ]
).freeze
GITHUB_DARK =

GitHub Dark theme

Theme.new(
  name: "github-dark",
  background: "#0d1117",
  foreground: "#c9d1d9",
  cursor: "#c9d1d9",
  palette: [
    "#484f58", # Black
    "#ff7b72", # Red
    "#3fb950", # Green
    "#d29922", # Yellow
    "#58a6ff", # Blue
    "#bc8cff", # Magenta
    "#39c5cf", # Cyan
    "#b1bac4", # White
    "#6e7681", # Bright Black
    "#ffa198", # Bright Red
    "#56d364", # Bright Green
    "#e3b341", # Bright Yellow
    "#79c0ff", # Bright Blue
    "#d2a8ff", # Bright Magenta
    "#56d4dd", # Bright Cyan
    "#f0f6fc"  # Bright White
  ]
).freeze
TOKYO_NIGHT =

Tokyo Night theme

Theme.new(
  name: "tokyo-night",
  background: "#1a1b26",
  foreground: "#a9b1d6",
  cursor: "#c0caf5",
  palette: [
    "#15161e", # Black
    "#f7768e", # Red
    "#9ece6a", # Green
    "#e0af68", # Yellow
    "#7aa2f7", # Blue
    "#bb9af7", # Magenta
    "#7dcfff", # Cyan
    "#a9b1d6", # White
    "#414868", # Bright Black
    "#f7768e", # Bright Red
    "#9ece6a", # Bright Green
    "#e0af68", # Bright Yellow
    "#7aa2f7", # Bright Blue
    "#bb9af7", # Bright Magenta
    "#7dcfff", # Bright Cyan
    "#c0caf5"  # Bright White
  ]
).freeze
ALL =

All available themes

{
  "asciinema" => ASCIINEMA,
  "dracula" => DRACULA,
  "monokai" => MONOKAI,
  "solarized-dark" => SOLARIZED_DARK,
  "solarized-light" => SOLARIZED_LIGHT,
  "nord" => NORD,
  "one-dark" => ONE_DARK,
  "github-dark" => GITHUB_DARK,
  "tokyo-night" => TOKYO_NIGHT
}.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Attribute Details

#background ⇒ String (readonly)

Returns Background color (hex).

Returns:

  • (String) —

    Background color (hex)



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# File 'lib/asciinema_win/themes.rb', line 20

Theme = Data.define(:name, :background, :foreground, :cursor, :palette) do
  # Get color for ANSI color index
  #
  # @param index [Integer] ANSI color index (0-15 for basic, 16-255 for extended)
  # @return [String] Hex color code
  def color(index)
    if index < 16
      palette[index]
    elsif index < 232
      # 216 color cube (6x6x6)
      index -= 16
      r = (index / 36) % 6
      g = (index / 6) % 6
      b = index % 6
      r_val = r == 0 ? 0 : 55 + r * 40
      g_val = g == 0 ? 0 : 55 + g * 40
      b_val = b == 0 ? 0 : 55 + b * 40
      format("#%02x%02x%02x", r_val, g_val, b_val)
    else
      # 24 grayscale colors
      gray = (index - 232) * 10 + 8
      format("#%02x%02x%02x", gray, gray, gray)
    end
  end

  # Get foreground color for ANSI code
  #
  # @param code [Integer] ANSI SGR foreground code (30-37, 90-97)
  # @return [String] Hex color code
  def fg_color(code)
    case code
    when 30..37 then palette[code - 30]
    when 90..97 then palette[code - 90 + 8]
    when 39 then foreground
    else foreground
    end
  end

  # Get background color for ANSI code
  #
  # @param code [Integer] ANSI SGR background code (40-47, 100-107)
  # @return [String] Hex color code
  def bg_color(code)
    case code
    when 40..47 then palette[code - 40]
    when 100..107 then palette[code - 100 + 8]
    when 49 then background
    else background
    end
  end
end

#cursor ⇒ String (readonly)

Returns Cursor color (hex).

Returns:

  • (String) —

    Cursor color (hex)



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# File 'lib/asciinema_win/themes.rb', line 20

Theme = Data.define(:name, :background, :foreground, :cursor, :palette) do
  # Get color for ANSI color index
  #
  # @param index [Integer] ANSI color index (0-15 for basic, 16-255 for extended)
  # @return [String] Hex color code
  def color(index)
    if index < 16
      palette[index]
    elsif index < 232
      # 216 color cube (6x6x6)
      index -= 16
      r = (index / 36) % 6
      g = (index / 6) % 6
      b = index % 6
      r_val = r == 0 ? 0 : 55 + r * 40
      g_val = g == 0 ? 0 : 55 + g * 40
      b_val = b == 0 ? 0 : 55 + b * 40
      format("#%02x%02x%02x", r_val, g_val, b_val)
    else
      # 24 grayscale colors
      gray = (index - 232) * 10 + 8
      format("#%02x%02x%02x", gray, gray, gray)
    end
  end

  # Get foreground color for ANSI code
  #
  # @param code [Integer] ANSI SGR foreground code (30-37, 90-97)
  # @return [String] Hex color code
  def fg_color(code)
    case code
    when 30..37 then palette[code - 30]
    when 90..97 then palette[code - 90 + 8]
    when 39 then foreground
    else foreground
    end
  end

  # Get background color for ANSI code
  #
  # @param code [Integer] ANSI SGR background code (40-47, 100-107)
  # @return [String] Hex color code
  def bg_color(code)
    case code
    when 40..47 then palette[code - 40]
    when 100..107 then palette[code - 100 + 8]
    when 49 then background
    else background
    end
  end
end

#foreground ⇒ String (readonly)

Returns Default foreground color (hex).

Returns:

  • (String) —

    Default foreground color (hex)



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# File 'lib/asciinema_win/themes.rb', line 20

Theme = Data.define(:name, :background, :foreground, :cursor, :palette) do
  # Get color for ANSI color index
  #
  # @param index [Integer] ANSI color index (0-15 for basic, 16-255 for extended)
  # @return [String] Hex color code
  def color(index)
    if index < 16
      palette[index]
    elsif index < 232
      # 216 color cube (6x6x6)
      index -= 16
      r = (index / 36) % 6
      g = (index / 6) % 6
      b = index % 6
      r_val = r == 0 ? 0 : 55 + r * 40
      g_val = g == 0 ? 0 : 55 + g * 40
      b_val = b == 0 ? 0 : 55 + b * 40
      format("#%02x%02x%02x", r_val, g_val, b_val)
    else
      # 24 grayscale colors
      gray = (index - 232) * 10 + 8
      format("#%02x%02x%02x", gray, gray, gray)
    end
  end

  # Get foreground color for ANSI code
  #
  # @param code [Integer] ANSI SGR foreground code (30-37, 90-97)
  # @return [String] Hex color code
  def fg_color(code)
    case code
    when 30..37 then palette[code - 30]
    when 90..97 then palette[code - 90 + 8]
    when 39 then foreground
    else foreground
    end
  end

  # Get background color for ANSI code
  #
  # @param code [Integer] ANSI SGR background code (40-47, 100-107)
  # @return [String] Hex color code
  def bg_color(code)
    case code
    when 40..47 then palette[code - 40]
    when 100..107 then palette[code - 100 + 8]
    when 49 then background
    else background
    end
  end
end

#name ⇒ String (readonly)

Returns Theme name.

Returns:

  • (String) —

    Theme name



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# File 'lib/asciinema_win/themes.rb', line 20

Theme = Data.define(:name, :background, :foreground, :cursor, :palette) do
  # Get color for ANSI color index
  #
  # @param index [Integer] ANSI color index (0-15 for basic, 16-255 for extended)
  # @return [String] Hex color code
  def color(index)
    if index < 16
      palette[index]
    elsif index < 232
      # 216 color cube (6x6x6)
      index -= 16
      r = (index / 36) % 6
      g = (index / 6) % 6
      b = index % 6
      r_val = r == 0 ? 0 : 55 + r * 40
      g_val = g == 0 ? 0 : 55 + g * 40
      b_val = b == 0 ? 0 : 55 + b * 40
      format("#%02x%02x%02x", r_val, g_val, b_val)
    else
      # 24 grayscale colors
      gray = (index - 232) * 10 + 8
      format("#%02x%02x%02x", gray, gray, gray)
    end
  end

  # Get foreground color for ANSI code
  #
  # @param code [Integer] ANSI SGR foreground code (30-37, 90-97)
  # @return [String] Hex color code
  def fg_color(code)
    case code
    when 30..37 then palette[code - 30]
    when 90..97 then palette[code - 90 + 8]
    when 39 then foreground
    else foreground
    end
  end

  # Get background color for ANSI code
  #
  # @param code [Integer] ANSI SGR background code (40-47, 100-107)
  # @return [String] Hex color code
  def bg_color(code)
    case code
    when 40..47 then palette[code - 40]
    when 100..107 then palette[code - 100 + 8]
    when 49 then background
    else background
    end
  end
end

#palette ⇒ Array<String> (readonly)

Returns 16-color palette (8 normal + 8 bright).

Returns:

  • (Array<String>) —

    16-color palette (8 normal + 8 bright)



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# File 'lib/asciinema_win/themes.rb', line 20

Theme = Data.define(:name, :background, :foreground, :cursor, :palette) do
  # Get color for ANSI color index
  #
  # @param index [Integer] ANSI color index (0-15 for basic, 16-255 for extended)
  # @return [String] Hex color code
  def color(index)
    if index < 16
      palette[index]
    elsif index < 232
      # 216 color cube (6x6x6)
      index -= 16
      r = (index / 36) % 6
      g = (index / 6) % 6
      b = index % 6
      r_val = r == 0 ? 0 : 55 + r * 40
      g_val = g == 0 ? 0 : 55 + g * 40
      b_val = b == 0 ? 0 : 55 + b * 40
      format("#%02x%02x%02x", r_val, g_val, b_val)
    else
      # 24 grayscale colors
      gray = (index - 232) * 10 + 8
      format("#%02x%02x%02x", gray, gray, gray)
    end
  end

  # Get foreground color for ANSI code
  #
  # @param code [Integer] ANSI SGR foreground code (30-37, 90-97)
  # @return [String] Hex color code
  def fg_color(code)
    case code
    when 30..37 then palette[code - 30]
    when 90..97 then palette[code - 90 + 8]
    when 39 then foreground
    else foreground
    end
  end

  # Get background color for ANSI code
  #
  # @param code [Integer] ANSI SGR background code (40-47, 100-107)
  # @return [String] Hex color code
  def bg_color(code)
    case code
    when 40..47 then palette[code - 40]
    when 100..107 then palette[code - 100 + 8]
    when 49 then background
    else background
    end
  end
end

Class Method Details

.get(name) ⇒ Theme

Get theme by name

Parameters:

  • name (String) —

    Theme name

Returns:

  • (Theme) —

    Theme or default if not found



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# File 'lib/asciinema_win/themes.rb', line 323

def self.get(name)
  ALL[name.to_s.downcase] || ASCIINEMA
end

.names ⇒ Array<String>

List available theme names

Returns:

  • (Array<String>) —

    Theme names



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# File 'lib/asciinema_win/themes.rb', line 330

def self.names
  ALL.keys
end