Login Page Styler helps you customize WordPress login page easily according to your theme or any other style .
Create child themes and customize styles, templates and functions. Enqueues stylesheets and web fonts. Handles rgba, vendor-prefixes and more.
Adds a Theme option to any active theme allowing you to make a child theme.
Create Child Themes quickly and easily from any theme that you have currently installed on your site/blog.
xili-sIFR3-active activate the modules of sIFR3 in your current theme or child theme.
xili-floom-slideshow integrates the floom slideshow in WordPress theme or child theme.
Creates a child theme with one click and lets you customise its options.
Easily to add any Custom CSS Code to your WordPress website.
Duplicate a theme, or make a child theme, quickly and easily from the admin panel. Easily rename the new theme. Works with WordPress Network too!
Additions for the Prose Child Theme for Genesis Framework: Widgetized Homepage, layouts, menu positions, translation loading, plus various helpers.
Allows to include a parent theme RTL stylesheet for a child theme.
Add site specific CSS to each blog individually, instead of changing your theme or using a million child themes.
Insert html code into Mystique theme(http://wordpress.org/extend/themes/mystique) without hand code the original theme files.