MU-Plugin for Theme Showdown 2020 - https://ithemes.com/training

itms-theme-helpers.php

<?php
/**
 * Plugin Name: Theme Showdown 2020 Helper Plugin
 * Plugin URI:  https://www.ithemes.com/training
 * Description: Plugin that includes handy helpful code snippets for Theme Showdown 2020
 * Author:      iThemes / AJ Morris
 * Author URI:  https://www.ithemes.com/training
 * Text Domain: ithemes-training
 * Domain Path: /languages
 * Version:     1.0.0
 *
 */
 
add_filter( 'generate_default_color_palettes', 'itmstraining_color_palettes' );
function itmstraining_color_palettes( $palettes ) {
	$palettes = array(
		'#3e3e58',
		'#3dbdb6',
		'#1e9bb1',
		'#3dbdb6',
		'#0289cd',
		'#1272d0',
		'#1d98d6',
		'#1f2531',
		'#ffffff',
		'#39394d',
		'#a2a1ae',
		'#0b5e6e',
	);
	
	return $palettes;
}
 
add_action( 'after_setup_theme', function() {
    add_theme_support( 'editor-color-palette', array(
        array(
            'name'  => __( 'Dk purple' ),
            'slug'  => 'dk-purple',
            'color' => '#3e3e58',
        ),
        array(
            'name'  => __( 'Green' ),
            'slug'  => 'green',
            'color' => '#3dbdb6',
        ),
        array(
            'name'  => __( 'Orange' ),
            'slug'  => 'orange',
            'color' => '#1e9bb1',
        ),
        array(
            'name'  => __( 'Red' ),
            'slug'  => 'red',
            'color' => '#3dbdb6',
        ),
        array(
            'name'  => __( 'Blue' ),
            'slug'  => 'blue',
            'color' => '#0289cd',
        ),
        array(
            'name'  => __( 'Green' ),
            'slug'  => 'green',
            'color' => '#1272d0',
        ),
        array(
            'name'  => __( 'Orange' ),
            'slug'  => 'orange',
            'color' => '#1d98d6',
        ),
        array(
            'name'  => __( 'Red' ),
            'slug'  => 'red',
            'color' => '#1f2531',
        ),
        array(
            'name'  => __( 'White' ),
            'slug'  => 'white',
            'color' => '#ffffff',
        ),
        array(
            'name'  => __( 'Green' ),
            'slug'  => 'green',
            'color' => '#39394d',
        ),
        array(
            'name'  => __( 'Orange' ),
            'slug'  => 'orange',
            'color' => '#a2a1ae',
        ),
        array(
            'name'  => __( 'Red' ),
            'slug'  => 'red',
            'color' => '#0b5e6e',
        ),
        array(
	        'name' 	=> __( 'Lt Gray' ),
	        'slug'	=> 'lt-gray',
	        'color'	=> '#f9fafa',
        )
    ) );
} );