protected static function generate_inline_styles( $context = null ) {

		$selector_prefix = ( 'editor' === $context ) ? '.editor-styles-wrapper' : '';

		$styles = array();

		// Frontend only.
		if ( is_null( $context ) ) {

			// Fix alignment of content in an access plan.
			$styles[] = '.llms-access-plan-description ul { padding-left: 0; }';

			// Fix checkboxes.
			$styles[] = '.llms-form-field.type-checkbox input { width: 25px; display: inline-block; }';

			// Hide header/footer on certificate pages.
			$styles[] = '.single-llms_certificate .site-header, .single-llms_my_certificate .site-header, .single-llms_certificate .widget-area, .single-llms_my_certificate .widget-area { display: none; }';

			// Question layout.
			$styles[] = '.llms-question-wrapper ol.llms-question-choices li.llms-choice .llms-choice-text { width: calc( 100% - 110px); }';

			// Payment gateway stylized radio buttons.
			$styles[] = LLMS_Theme_Support::get_css(
				array( '.llms-form-field.type-radio input[type=radio]:checked+label:before' ),
				array(
					'background-image' => '-webkit-radial-gradient(center,ellipse,var( --global--color-secondary ) 0,var( --global--color-secondary ) 40%,#fafafa 45%)',
					'background-image' => 'radial-gradient(ellipse at center,var( --global--color-secondary ) 0,var( --global--color-secondary ) 40%,#fafafa 45%)',
				)
			);
			// Darkmode fix.
			$styles[] = LLMS_Theme_Support::get_css(
				array( '.is-dark-theme .llms-form-field.type-radio input[type=radio]:checked+label:before' ),
				array(
					'background-image' => array(
						'-webkit-radial-gradient(center,ellipse,var( --global--color-background ) 0,var( --global--color-background ) 40%,#fafafa 45%)',
						'radial-gradient(ellipse at center,var( --global--color-background ) 0,var( --global--color-background ) 40%,#fafafa 45%)',
					),
				)
			);

			// Donuts.
			$styles[] = '.llms-donut svg path { stroke: var( --global--color-secondary ); }';
			$styles[] = '.is-dark-theme .llms-donut svg path { stroke: var( --global--color-background ); opacity: 0.5; }';
			$styles[] = '.is-dark-theme .llms-donut { color: var( --global--color-background ); }';
		}

		// Editor only.
		if ( 'editor' === $context ) {

			// Elements with a light background that become unreadable in darkmode in the block editor.
			$styles[] = LLMS_Theme_Support::get_css(
				array(
					'.llms-lesson-link .llms-lesson-title',
					'.llms-lesson-link .llms-main > *',
				),
				array(
					'color' => 'var( --global--color-background )',
				),
				'.is-dark-theme ' . $selector_prefix
			);
		}

		$styles[] = '.llms-quiz-ui { background: transparent; }';

		// Fix anchor buttons.
		$styles[] = 'a.llms-button-action, a.llms-button-danger, a.llms-button-primary, a.llms-button-secondary { display: inline-block; }';

		// Elements with a light background that become unreadable in darkmode.
		$styles[] = LLMS_Theme_Support::get_css(
			array(
				'.is-dark-theme .llms-notification',
				'.is-dark-theme .llms-table tbody tr:nth-child(odd) td',
				'.is-dark-theme .llms-table tbody tr:nth-child(odd) td a',
				'.is-dark-theme .llms-certificate-container',
				'.is-dark-theme a.llms-certificate',
				'.is-dark-theme .llms-instructor-info .llms-instructors',
				'.is-dark-theme .llms-achievement-loop-item.achievement-item',
				'.is-dark-theme .llms-achievement',
				'.is-dark-theme .llms-loop-item-content .llms-loop-title:hover',
				'.llms-notice a',
				'.is-dark-theme .llms-question-wrapper ol.llms-question-choices li.llms-choice .llms-marker',
				'.is-dark-theme .llms-table tbody tr:nth-child(odd) td',
				'.is-dark-theme .llms-table tbody tr:nth-child(odd) th',
				'.is-dark-theme .llms-lesson-preview.is-complete .llms-lesson-complete',
			),
			array(
				'color' => 'var( --global--color-background )',
			),
			$selector_prefix
		);
		$styles[] = LLMS_Theme_Support::get_css(
			array(
				'.llms-checkout',
				'.llms-access-plan .llms-access-plan-footer',
				'.llms-access-plan .llms-access-plan-content',
				'.is-dark-theme .llms-progress .progress-bar-complete',
			),
			array(
				'background-color' => 'var( --global--color-background )',
			),
			$selector_prefix
		);

		// Add background color and color to qualifying elements.
		$styles[] = LLMS_Theme_Support::get_css(
			LLMS_Theme_Support::get_selectors_primary_color_background(),
			array(
				'color'            => 'var( --global--color-background )',
				'background-color' => 'var( --global--color-secondary )',
			),
			$selector_prefix
		);

		// Add border color to qualifying elements.
		$styles[] = LLMS_Theme_Support::get_css(
			LLMS_Theme_Support::get_selectors_primary_color_border(),
			array(
				'border-color' => 'var( --global--color-secondary )',
			),
			$selector_prefix
		);

		// Add color to qualifying elements.
		$styles[] = LLMS_Theme_Support::get_css(
			LLMS_Theme_Support::get_selectors_primary_color_text(),
			array(
				'color' => 'var( --global--color-secondary )',
			),
			$selector_prefix
		);

		// Fix progress bars.
		$styles[] = '.llms-progress { color: var( --global--color-background ); }';
		$styles[] = '.is-dark-theme .llms-progress .progress-bar-complete { opacity: 0.5; }';

		return implode( "\r", $styles );

	}