OpalineTheme Engine for Rust

Token-based themes with 39 builtins, gradients, and adapters for ratatui, egui, iced, crossterm, syntect, and more

🎨

Token-Based Design

Three-layer resolution pipeline. Palette colors, semantic tokens, composed styles. Consistent and maintainable by design.

🌈

39 Builtin Themes

SilkCircuit, Catppuccin, GitHub, Monokai Pro, Ayu, Night Owl, Flexoki, Palenight, Dracula, Nord, Rose Pine, Gruvbox, Solarized, Tokyo Night, Kanagawa, Everforest, One

💠

Smooth Gradients

Multi-stop color gradients with linear interpolation. Perfect for progress bars, status indicators, and decorative elements.

⚡

Multi-Framework Adapters

First-class adapters for ratatui, egui, iced, crossterm, owo-colors, syntect, and CSS. One theme, every target.

🔧

TOML-Driven

Define themes in clean TOML files. Palette, tokens, styles, and gradients all declaratively configured.

🛡️

Strict by Default

Cycle detection, strict resolution, compile-time theme embedding. Errors surface early, not at runtime.