Example of global theme settings and styles and WP Customizer API template.

WordPress Plugin to allow customize header videos using the header media feature in WordPress core (like in TwentySeventeen). Adds button to toggle audio in video headers and two checkboxes in the customizers header media section.

Custom controls library. Part of the Kirki Plugin.

A WordPress demo theme showing how to use the Customize Plus plugin

Treehouse Course: WordPress

More custom WordPress Theme Development by Ben Kaminski

A simple control for outputting small informational blocks in the customizer.

WordPress Customizer Controls

A color contrast control for use with the WordPress Customizer.

Child theme for Wordpress theme Hestia to display blog entries by categories

A handy plugin to hide edit shortcuts in the customizer per user.

Mixin' Styles

My sandbox to demonstrate the Customizer as default for customizing in front end.

This plugin adds Polylang support for WordPress Customizer

Best Practice to decide when to use theme options page (simple or complex) or Customizer API

Add premium features to the WordPress customize

Super Sexy Custom Buttons (for WordPress)—the plugin that understands your pain and delivers the bling-bling without the WTF. No more drowning in options you don't need. No more endless coding sessions just to make your "Continue Reading", "Post Comment", and "Reply" buttons look as fabulous as you know they should.

Auto-magical system to style your WordPress site.

A helper package for working with the WordPress Customizer

Helper class you can use when building settings for the WordPress Customize API