Theme supports (theme_support) (tag)
| add_theme_support() | Registers theme support for a given feature. |
| current_theme_supports() | Checks a theme's support for a given feature |
| get_header_image() | Retrieve header image for custom header. |
| get_header_textcolor() | Retrieves the custom header text color in 3- or 6-digit hexadecimal form. |
| get_theme_support() | Gets the theme support arguments passed when registering that support. |
| has_header_image() | Check whether a header image is set or not. |
| header_image() | Displays header image URL. |
| remove_theme_support() | Allows a theme to de-register its support of a certain feature |