Features

• Automatically enables Android's EdgeToEdge StatusBar and NavigationBar Styling
• Access MaterialYou Dynamic Color Palette
• Change Status Bar and Navigation Bar Color
• Access Window Insets to align EdgeToEdge layout correctly

Install

Install the Core plugin by adding the following to your Cargo.toml file:

src-tauri/Cargo.toml

# via crates.io
[dependencies]
tauri-plugin-m3 = "0.2.2"
# or directly
[dependencies]
tauri-plugin-m3 = { git = "https://github.com/0xk1f0/tauri-plugin-m3" }

And then install the JavaScript Guest bindings like this:

# via npmjs.org
npm install tauri-plugin-m3
# or directly
npm install https://github.com/0xk1f0/tauri-plugin-m3

Usage

First you need to register the core plugin with Tauri:

src-tauri/src/main.rs

fn main() {
    tauri::Builder::default()
        .plugin(tauri_plugin_m3::init())
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

Then set the default permissions for the plugin:

src-tauri/capabilities/default.json

{
    "permissions": [
        "m3:default"
    ]
}

Afterwards all the plugin's APIs are available through the JavaScript guest bindings:

import { M3 } from "tauri-plugin-m3";

// get the full material color palette
// choose either "dark", "light" or "system" (default)
let colorScheme = await M3.getColors("system");
console.log(colorScheme.primary); // "#F4F678FF"

// apply colors to CSS variables
// choose either "dark", "light" or "system" (default)
let isSuccess = await M3.applyColors("light");
console.log(isSuccess); // "true"

// get insets for compensating EdgeToEdge display
// either already scale compensated or raw
let deviceInsets = await M3.getInsets();
console.log(deviceInsets.adjustedInsetTop); // f.E. 96

// set the status and navigation bar color
// choose either "dark", "light" or "system" (default)
let isSuccess = await M3.setBarColor("dark");
console.log(isSuccess); // "true"

The following colors are available

type ColorScheme = {
    primary?: string;
    onPrimary?: string;
    primaryContainer?: string;
    onPrimaryContainer?: string;
    inversePrimary?: string;
    secondary?: string;
    onSecondary?: string;
    secondaryContainer?: string;
    onSecondaryContainer?: string;
    tertiary?: string;
    onTertiary?: string;
    tertiaryContainer?: string;
    onTertiaryContainer?: string;
    background?: string;
    onBackground?: string;
    surface?: string;
    onSurface?: string;
    surfaceVariant?: string;
    onSurfaceVariant?: string;
    inverseSurface?: string;
    inverseOnSurface?: string;
    outline?: string;
};

Transparent Navigation Bar

To get a fully transaprent navigation bar, add the following in your app

src-tauri/gen/android/app/src/main/res/values/themes.xml

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.stority" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <item name="android:enforceNavigationBarContrast">false</item>
+        <item name="android:enforceStatusBarContrast">false</item>
    </style>
</resources>

Global Theming

We can implement automatic global theming of our app via defining a fallback theme in our primary CSS file first

styles.css

:root {
    --primary: #bb86fc;
    --onPrimary: #000000;
    --primaryContainer: #3700b3;
    --onPrimaryContainer: #ffffff;
    --inversePrimary: #6200ee;
    --secondary: #03dac6;
    --onSecondary: #000000;
    --secondaryContainer: #00574b;
    --onSecondaryContainer: #ffffff;
    --tertiary: #03a9f4;
    --onTertiary: #000000;
    --tertiaryContainer: #014d73;
    --onTertiaryContainer: #ffffff;
    --background: #121212;
    --onBackground: #e0e0e0;
    --surface: #1e1e1e;
    --onSurface: #e0e0e0;
    --surfaceVariant: #2c2c2c;
    --onSurfaceVariant: #e0e0e0;
    --inverseSurface: #ffffff;
    --inverseOnSurface: #000000;
    --outline: #a0a0a0;
}

Then initialize our colors when our app loads for the first time, f.E. in Svelte's onMount()

App.svelte

<script>
    import { onMount } from 'svelte';
    import { M3 } from 'tauri-plugin-m3';

    onMount(async () => {
        await M3.applyColors("system");
        await M3.setBarColor("system");
    });
</script>

<div>
    <h1 style="color: var(--primary);">Hello World</h1>
</div>

<style>
    body {
        background-color: var(--background);
    }
</style>

This will ensure that our MaterialYou colors get loaded into our predefined CSS variables, but also provides a fallback theme.

Of course this is only one way to do it, feel free to use this plugin like you want! :)

Credits and Thanks

• plugins-workspace - For showing me how to build Tauri Plugins