class Opal::Theme

• Opal::Theme
• Reference
• Object

Overview

Represents a semantic color and styling theme for consistent, accessible TUI interfaces.

Defined in:

Constructors

• .[](name : Symbol | String) : Theme
• .build(name : String, &block : ThemeBuilder -> Nil) : Theme

  Declarative Theme Builder DSL entry point

• .catppuccin_latte : Theme
• .catppuccin_mocha : Theme
• .current : Theme
• .current=(theme : Theme | Symbol | String) : Theme
• .cyberpunk : Theme
• .default : Theme
• .dracula : Theme
• .from_brand(name : String, brand : Color | String | Symbol, mode : Symbol = :dark) : Theme

  Generates a balanced, harmonious theme from a single brand color and dark/light mode

• .get(name : Symbol | String) : Theme
• .gruvbox : Theme
• .high_contrast : Theme
• .monokai : Theme
• .new(name : String, primary : Color, secondary : Color, accent : Color, background : Color, surface : Color, text : Color, text_muted : Color, border : Color, success : Color, warning : Color, danger : Color, info : Color, window_border : Border = Border.rounded, box_border : Border = Border.rounded, glyphs : GlyphSet = GlyphSet.new)
• .nord : Theme
• .register(theme : Theme) : Theme
• .solarized_dark : Theme
• .tokyo_night : Theme

Class Method Summary

• .all : Array(Theme)
• .find(name : Symbol | String) : Theme | Nil

Instance Method Summary

• #accent : Color
• #accent=(accent : Color)
• #audit_contrast : Hash(String, NamedTuple(ratio: Float64, compliant: Bool, level: String))

  Audits theme contrast ratios against WCAG 2.1 criteria

• #background : Color
• #background=(background : Color)
• #border : Color
• #border=(border : Color)
• #box_border : Border
• #box_border=(box_border : Border)
• #danger : Color
• #danger=(danger : Color)
• #derive(name : String, primary : Color | String | Symbol | Nil = nil, secondary : Color | String | Symbol | Nil = nil, accent : Color | String | Symbol | Nil = nil, background : Color | String | Symbol | Nil = nil, surface : Color | String | Symbol | Nil = nil, text : Color | String | Symbol | Nil = nil, text_muted : Color | String | Symbol | Nil = nil, border : Color | String | Symbol | Nil = nil, success : Color | String | Symbol | Nil = nil, warning : Color | String | Symbol | Nil = nil, danger : Color | String | Symbol | Nil = nil, info : Color | String | Symbol | Nil = nil, window_border : Border | Symbol | String | Nil = nil, box_border : Border | Symbol | String | Nil = nil, glyphs : GlyphSet | Nil = nil) : Theme

  Returns a new theme derived from this theme with selective overrides

• #ensure_contrast(min_ratio : Float64 = 4.5) : Theme

  Adjusts text and primary contrast against background to satisfy minimum WCAG ratio

• #glyphs : GlyphSet
• #glyphs=(glyphs : GlyphSet)
• #info : Color
• #info=(info : Color)
• #name : String
• #primary : Color
• #primary=(primary : Color)
• #secondary : Color
• #secondary=(secondary : Color)
• #success : Color
• #success=(success : Color)
• #surface : Color
• #surface=(surface : Color)
• #text : Color
• #text=(text : Color)
• #text_muted : Color
• #text_muted=(text_muted : Color)
• #warning : Color
• #warning=(warning : Color)
• #window_border : Border
• #window_border=(window_border : Border)

Constructor Detail

Class Method Detail

Instance Method Detail