Astra_Ext_Typography_Loader::theme_defaults( array $defaults )

		public function theme_defaults( $defaults ) {

			// Header.
			$defaults['font-family-site-title']    = 'inherit';
			$defaults['font-weight-site-title']    = 'inherit';
			$defaults['text-transform-site-title'] = '';
			$defaults['line-height-site-title']    = '';

			$defaults['font-family-site-tagline']    = 'inherit';
			$defaults['font-weight-site-tagline']    = 'inherit';
			$defaults['text-transform-site-tagline'] = '';
			$defaults['line-height-site-tagline']    = '';

			// Primary Menu.
			$defaults['font-size-primary-menu']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-weight-primary-menu']    = 'inherit';
			$defaults['font-family-primary-menu']    = 'inherit';
			$defaults['text-transform-primary-menu'] = '';
			$defaults['line-height-primary-menu']    = '';

			// Primary Dropdown Menu.
			$defaults['font-size-primary-dropdown-menu']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-primary-dropdown-menu']    = 'inherit';
			$defaults['font-weight-primary-dropdown-menu']    = 'inherit';
			$defaults['text-transform-primary-dropdown-menu'] = '';
			$defaults['line-height-primary-dropdown-menu']    = '';

			// Archive Summary Box.
			$defaults['font-family-archive-summary-title']    = 'inherit';
			$defaults['font-weight-archive-summary-title']    = 'inherit';
			$defaults['text-transform-archive-summary-title'] = '';
			$defaults['line-height-archive-summary-title']    = '';

			// Archive.
			$defaults['font-family-page-title']    = 'inherit';
			$defaults['font-weight-page-title']    = 'inherit';
			$defaults['text-transform-page-title'] = '';
			$defaults['line-height-page-title']    = '';

			$defaults['font-size-post-meta']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-post-meta']    = 'inherit';
			$defaults['font-weight-post-meta']    = 'inherit';
			$defaults['text-transform-post-meta'] = '';
			$defaults['line-height-post-meta']    = '';

			$defaults['font-size-post-pagination']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['text-transform-post-pagination'] = '';

			// Single.
			$defaults['font-family-entry-title']    = 'inherit';
			$defaults['font-weight-entry-title']    = 'inherit';
			$defaults['text-transform-entry-title'] = '';
			$defaults['line-height-entry-title']    = '';

			// Button.
			$defaults['font-size-button']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-weight-button']    = 'inherit';
			$defaults['font-family-button']    = 'inherit';
			$defaults['text-transform-button'] = '';

			// Sidebar.
			$defaults['font-size-widget-title']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-widget-title']    = 'inherit';
			$defaults['font-weight-widget-title']    = 'inherit';
			$defaults['text-transform-widget-title'] = '';
			$defaults['line-height-widget-title']    = '';

			$defaults['font-size-widget-content']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-widget-content']    = 'inherit';
			$defaults['font-weight-widget-content']    = 'inherit';
			$defaults['text-transform-widget-content'] = '';
			$defaults['line-height-widget-content']    = '';

			// Footer.
			$defaults['font-size-footer-content']      = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-footer-content']    = 'inherit';
			$defaults['font-weight-footer-content']    = 'inherit';
			$defaults['text-transform-footer-content'] = '';
			$defaults['line-height-footer-content']    = '';

			// Header <H1>.
			$defaults['font-family-h1']    = 'inherit';
			$defaults['font-weight-h1']    = 'inherit';
			$defaults['text-transform-h1'] = '';
			$defaults['line-height-h1']    = '';

			// Header <H2>.
			$defaults['font-family-h2']    = 'inherit';
			$defaults['font-weight-h2']    = 'inherit';
			$defaults['text-transform-h2'] = '';
			$defaults['line-height-h2']    = '';

			// Header <H3>.
			$defaults['font-family-h3']    = 'inherit';
			$defaults['font-weight-h3']    = 'inherit';
			$defaults['text-transform-h3'] = '';
			$defaults['line-height-h3']    = '';

			if ( astra_addon_has_gcp_typo_preset_compatibility() ) {
				// Header <H4>.
				$defaults['font-family-h4']    = 'inherit';
				$defaults['font-weight-h4']    = 'inherit';
				$defaults['text-transform-h4'] = '';
				$defaults['line-height-h4']    = '';

				// Header <H5>.
				$defaults['font-family-h5']    = 'inherit';
				$defaults['font-weight-h5']    = 'inherit';
				$defaults['text-transform-h5'] = '';
				$defaults['line-height-h5']    = '';

				// Header <H6>.
				$defaults['font-family-h6']    = 'inherit';
				$defaults['font-weight-h6']    = 'inherit';
				$defaults['text-transform-h6'] = '';
				$defaults['line-height-h6']    = '';
			}

			// Outside Menu Item.
			$defaults['outside-menu-font-size']   = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['outside-menu-line-height'] = '';

			$defaults['section-header-account-menu-font-size']         = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['section-header-account-popup-font-size']        = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['section-header-account-popup-button-font-size'] = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-size-section-hb-language-switcher']        = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-size-section-fb-language-switcher']        = array(
				'desktop'      => '',
				'tablet'       => '',
				'mobile'       => '',
				'desktop-unit' => 'px',
				'tablet-unit'  => 'px',
				'mobile-unit'  => 'px',
			);
			$defaults['font-family-section-hb-language-switcher']      = 'inherit';
			$defaults['font-family-section-fb-language-switcher']      = 'inherit';

			/**
			 * Footer > Social Icon Defaults.
			 */
			$num_of_footer_social_icons = astra_addon_builder_helper()->num_of_footer_social_icons;
			for ( $index = 1; $index <= $num_of_footer_social_icons; $index++ ) {
				$defaults[ 'font-family-section-fb-social-icons-' . $index ]    = 'inherit';
				$defaults[ 'font-weight-section-fb-social-icons-' . $index ]    = 'inherit';
				$defaults[ 'text-transform-section-fb-social-icons-' . $index ] = '';
				$defaults[ 'line-height-section-fb-social-icons-' . $index ]    = '';
			}

			/**
			 * Header > Social Icon Defaults.
			 */
			$component_limit = astra_addon_builder_helper()->component_limit;
			for ( $index = 1; $index <= $component_limit; $index++ ) {
				$defaults = $this->prepare_social_icons_defaults( $defaults, $index );
				$defaults = $this->prepare_button_defaults( $defaults, $index );
			}

			return $defaults;
		}