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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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44 | * |
45 | * @type string $default-text-color Default color of the header text. |
46 | * @type int $width Width in pixels of the custom header image. Default 1200. |
47 | * @type int $height Height in pixels of the custom header image. Default 280. |
48 | * @type bool $flex-height Whether to allow flexible-height header images. Default true. |
49 | * @type callable $wp-head-callback Callback function used to style the header image and text |
50 | * displayed on the blog. |
51 | * } |
52 | */ |
53 | add_theme_support( 'custom-header', apply_filters( 'twentysixteen_custom_header_args', array( |
54 | 'default-text-color' => $default_text_color, |
55 | 'width' => 1200, |
56 | 'height' => 280, |
57 | 'flex-height' => true, |
58 | 'wp-head-callback' => 'twentysixteen_header_style', |
59 | ) ) ); |
60 | } |
61 | add_action( 'after_setup_theme', 'twentysixteen_custom_header_and_background' ); |
62 |
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