Filters and Hooks
Singular Alerts exposes WordPress filters for customizing fonts, headlines, block availability, content processing, and branding.
Add filter callbacks in a custom plugin or your theme’s functions.php.
Fonts
alerts_dlx_load_fonts
Control whether Singular Alerts loads the bundled Lato Google Font.
add_filter( 'alerts_dlx_load_fonts', '__return_false' );Code language: JavaScript (javascript)alerts_dlx_default_font_family
Set the font family used when custom fonts are disabled.
add_filter(
'alerts_dlx_default_font_family',
function () {
return 'Raleway, sans-serif';
}
);Code language: JavaScript (javascript)See Custom Fonts for a complete example.
Headline and Title
alerts_dlx_headline_style
Filter the HTML element used for alert titles (h1–h6 or div).
add_filter(
'alerts_dlx_headline_style',
function () {
return 'h3';
}
);Code language: JavaScript (javascript)Security note: The return value is validated server-side. Only h1, h2, h3, h4, h5, h6, and div are allowed in output. Any other value falls back to h2.
alerts_dlx_headline_custom_classes
Filter space-separated CSS classes applied to alert title elements (in addition to alerts-dlx-title).
add_filter(
'alerts_dlx_headline_custom_classes',
function ( $classes ) {
return $classes . ' no-toc';
}
);Code language: PHP (php)alerts_dlx_headline_force_size
Filter whether alert title font size is forced over theme styles.
add_filter( 'alerts_dlx_headline_force_size', '__return_true' );Code language: JavaScript (javascript)Block Themes
alerts_dlx_enabled_block_styles
Filter which alert block themes are available. Default includes bootstrap, chakra, material, and shoelace.
add_filter(
'alerts_dlx_enabled_block_styles',
function ( $styles ) {
return array( 'chakra' );
}
);Code language: PHP (php)Content and Colors
alerts_dlx_the_content
Filter alert description content before output (shortcode inner content and alert_description). Runs through the same pipeline as the_content filters.
add_filter( 'alerts_dlx_the_content', 'wpautop' );Code language: JavaScript (javascript)alerts_dlx_color_palette
Filter the color palette available for custom alert colors in the block editor.
add_filter(
'alerts_dlx_color_palette',
function ( $palette ) {
// Modify $palette array.
return $palette;
}
);Code language: PHP (php)REST API
alerts_dlx_rest_post_types_to_search
Filter post types searched when picking button links in the block editor. Default: post, page.
add_filter(
'alerts_dlx_rest_post_types_to_search',
function ( $post_types ) {
$post_types[] = 'product';
return $post_types;
}
);Code language: PHP (php)Branding (Admin)
These filters customize plugin metadata shown in the WordPress admin:
| Filter | Default |
|---|---|
alerts_dlx_plugin_name | AlertsDLX |
alerts_dlx_plugin_description | Plugin description string |
alerts_dlx_plugin_uri | https://dlxplugins.com/plugins/alertsdlx |
alerts_dlx_plugin_author | MediaRon LLC |
alerts_dlx_plugin_author_uri | https://mediaron.com |
alerts_dlx_plugin_support_uri | https://dlxplugins.com/support/ |
alerts_dlx_plugin_docs_uri | https://alertsdlx.dlxplugins.com/ |
alerts_dlx_plugin_menu_title | AlertsDLX |
Example:
add_filter(
'alerts_dlx_plugin_name',
function () {
return 'My Custom Alerts';
}
);Code language: JavaScript (javascript)
Display Conditions