defining a folder location in order to recall it

Question

Many WordPress frameworks include helper functions and pre-defined folder locations. WP Framework is very well coded but requires some learning and inspecting the code to find the documentation.

In the file core.php many constants are defined but I did not see IMAGES but THEME_IMAGE is defined so it is likely that IMAMGE refers to the images folder in the child theme directory.

Here is the list of constants available for you to use:

WP Framework V 3.6 core.php:

function wpf_initial_constants() {  
    // Sets the File path to the current parent theme's directory.
    define( 'PARENT_THEME_DIR', TEMPLATEPATH );

    // Sets the URI path to the current parent theme's directory.
    define( 'PARENT_THEME_URI', get_template_directory_uri() );

    // Sets the File path to the current parent theme's directory.
    define( 'CHILD_THEME_DIR', STYLESHEETPATH );

    // Sets the URI path to the current child theme's directory.
    define( 'CHILD_THEME_URI', get_stylesheet_directory_uri() );

    // Sets the file path to WP Framework
    define( 'WPF_DIR', PARENT_THEME_DIR . '/framework' );

    // Sets the URI path to WP Framework
    define( 'WPF_URI', PARENT_THEME_URI . '/framework' );

    // Sets the file path to extensions
    define( 'WPF_EXT_DIR', WPF_DIR . '/extensions' );

    // Sets the URI path to extensions
    define( 'WPF_EXT_URI', WPF_URI . '/extensions' );
}

/**
 * Templating constants that you can override before WP Framework is loaded.
 *
 * @since 0.3.0
 *
 * @return void
 */
function wpf_templating_constants() {
    // Sets a unique ID for the theme.
    if ( !defined( 'THEME_ID' ) )
        define( 'THEME_ID', 'wpf_' . get_template() );

    // Sets the default theme options db name
    if ( !defined( 'THEME_OPTIONS' ) )
        define( 'THEME_OPTIONS', 'theme_options' );

    // Sets relative paths for the default directories/paths
    if ( !defined( 'THEME_LIBRARY' ) )
        define( 'THEME_LIBRARY', '/library' );

    if ( !defined( 'THEME_I18N' ) )
        define( 'THEME_I18N', THEME_LIBRARY . '/languages' );

    if ( !defined( 'THEME_FUNC' ) )
        define( 'THEME_FUNC', THEME_LIBRARY . '/functions' );

    if ( !defined( 'THEME_IMG' ) )
        define( 'THEME_IMG', THEME_LIBRARY . '/images' );

    if ( !defined( 'THEME_CSS' ) )
        define( 'THEME_CSS', THEME_LIBRARY . '/css' );

    if ( !defined( 'THEME_JS' ) )
        define( 'THEME_JS', THEME_LIBRARY . '/js' );

    // Sets the default custom header image
    if ( !defined( 'DEFAULT_HEADER_IMAGE' ) )
        define( 'DEFAULT_HEADER_IMAGE', get_theme_part( THEME_IMG . '/custom-header.gif' ) );
}

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