[WordPress] Customize TinyMCE Sample

_add_buttons.php

<?php
function tinymce_add_buttons_3( $array ) {
	// add buttons
	array_unshift( $array, 'styleselect', 'fontselect', 'fontsizeselect', 'backcolor' );
	return $array;
}
add_filter( 'mce_buttons_3', 'tinymce_add_buttons_3' );

_customize_settings.php

<?php
function customize_tinymce_settings($mceInit) {
	
	// set text color palette
	$mceInit['theme_advanced_text_colors'] = 'FF0000,00FF00,0000FF';
	
	// set text background color palette
	$mceInit['theme_advanced_background_colors'] = 'FF0000,00FF00,0000FF';
	
	// disable "more colors" in color palette
	$mceInit['theme_advanced_more_colors'] = false;
	
	// set font size
	$mceInit['theme_advanced_font_sizes'] = '0.8em,1.0em,1.2em';
	
	// set font size value
	$mceInit['font_size_style_values'] = '0.8em,1.0em,1.2em';
	
	// set style formats
	$style_formats = array(  
		array(  
			'title' => 'small.small',  
			'inline' => 'small',
			'wrapper' => false,
		),
		array(  
			'title' => 'div.column',  
			'block' => 'div',  
			'classes' => 'column',
			'wrapper' => true,
		),
		array(  
			'title' => 'span.strong',  
			'inline' => 'span',  
			'classes' => 'strong',
			'wrapper' => false,
		),
	);
	$mceInit['style_formats'] = json_encode( $style_formats );  
	
	return $mceInit;
}
add_filter( 'tiny_mce_before_init', 'customize_tinymce_settings' );

_remove_buttons.php

<?php
function tinymce_delete_buttons_2( $array ) {
	// remove button
	$array = array_diff($array, array('justifyfull'));
	return $array;
}
add_filter( 'mce_buttons_2', 'tinymce_delete_buttons_2' );

customize_tinymce.php

<?php
/*
Plugin Name: Customize TinyMCE Sample
Version: 0.1
*/

// See class-wp-editor.php
function tinymce_delete_buttons_2( $array ) {
	// remove button
	$array = array_diff($array, array('justifyfull'));
	return $array;
}
add_filter( 'mce_buttons_2', 'tinymce_delete_buttons_2' );

function tinymce_add_buttons_3( $array ) {
	// add buttons
	array_unshift( $array, 'styleselect', 'fontselect', 'fontsizeselect', 'backcolor' );
	return $array;
}
add_filter( 'mce_buttons_3', 'tinymce_add_buttons_3' );

// See editor_template_src.js
function customize_tinymce_settings($mceInit) {
	
	// set text color palette
	$mceInit['theme_advanced_text_colors'] = 'FF0000,00FF00,0000FF';
	
	// set text background color palette
	$mceInit['theme_advanced_background_colors'] = 'FF0000,00FF00,0000FF';
	
	// disable "more colors" in color palette
	$mceInit['theme_advanced_more_colors'] = false;
	
	// set font size
	$mceInit['theme_advanced_font_sizes'] = '0.8em,1.0em,1.2em';
	
	// set font size value
	$mceInit['font_size_style_values'] = '0.8em,1.0em,1.2em';
	
	// set style formats
	$style_formats = array(  
		array(  
			'title' => 'small.small',  
			'inline' => 'small',
			'wrapper' => false,
		),
		array(  
			'title' => 'div.column',  
			'block' => 'div',  
			'classes' => 'column',
			'wrapper' => true,
		),
		array(  
			'title' => 'span.strong',  
			'inline' => 'span',  
			'classes' => 'strong',
			'wrapper' => false,
		),
	);
	$mceInit['style_formats'] = json_encode( $style_formats );  
	
	return $mceInit;
}
add_filter( 'tiny_mce_before_init', 'customize_tinymce_settings' );