# Substrate Styles

Cross-platform styling properties and UI theme generation.

## Visual Primitives

Visual primitives are constants that define core visual attributes like color, spacing, typography and size. These properties can be composed to create a visual theme.

👀 [View the primitives ➞](https://github.com/VirtaHealth/substrate/tree/master/packages/styles/src/primitives)

## Styles

Styles are thematic properties that are organized by and applied to UI elements like text, buttons, and forms.

👀 [View the styles ➞](https://github.com/VirtaHealth/substrate/tree/master/packages/styles/src/styles)

## Universal Format

All Substrate primitives and styles are encoded in YAML, transformed into multiple formats and syntaxes with Theo, and exported for consumption by any Virta app or website.

When built, styles are emitted to `./dist` in these formats:

- ES6 Modules
- CSS Modules
- JSON
- TypeScript Definitions (.d.ts)

## Custom Themes

Substrate exports a set of base styles that constitute a base theme. Custom themes can be created from the base theme by using overrides, either locally in a project's style assignments or, in special cases, a custom theme exported from Substrate.


@virtahealth/substrate-styles

virtahealthmachine

substrate-styles

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@virtahealth/substrate-styles

Substrate Styles

Visual Primitives

Styles

Universal Format

Custom Themes

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