Most plugins are available through Word Press themselves, either via downloading them and installing the files manually via FTP or through the Word Press dashboard.
However, many third parties offer plugins through their own websites, many of which are paid packages.
The PHP, HTML and CSS found in themes can be directly modified to alter theme behavior, or a theme can be a "child" theme which inherits settings from another theme and selectively overrides features.
Word Press themes are generally classified into two categories: free and premium.
Features include a plugin architecture and a template system.
It is most associated with blogging, but supports other types of web content including more traditional mailing lists and forums, media galleries, and online stores.
The free theme Underscores created by the Word Press developers has become a popular basis for new themes.
Word Press also supports the Trackback and Pingback standards for displaying links to other sites that have themselves linked to a post or an article.
Includes internal linking abilities, a newly streamlined writing interface, and many other changes.
Improved admin interface, responsive design for mobile devices, new typography using Open Sans, admin color schemes, redesigned theme management interface, simplified main dashboard, "Twenty Fourteen" magazine style default theme, second release using "Plugin-first development process". Additional specific goals include the Tiny MCE inline element / link boundaries, new media widgets, WYSIWYG in text widget.
Every Word Press website requires at least one theme to be present and every theme should be designed using Word Press standards with structured PHP, valid HTML (Hyper Text Markup Language), and Cascading Style Sheets (CSS).
Themes may be directly installed using the Word Press "Appearance" administration tool in the dashboard, or theme folders may be copied directly into the themes directory, for example via FTP.