code/SEO_Icons_SiteTree_DataExtension.php
protected function GenerateHTML5Favicon(SiteTree $owner, &$metadata, Image $HTML5Favicon) {

        // header
        $metadata .= $owner->MarkupComment('HTML5 Favicon');

//			// Android Chrome 32
        // @todo: Is the Android Chrome 32 196x196 px icon fully redundant ??
//			$metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(196,196)->getAbsoluteURL(), 'image/png', '196x196');

        // Android Chrome 37+ / HTML5 spec
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(192, 192)->getAbsoluteURL(), 'image/png', '192x192');

        // Android Chrome 37+ / HTML5 spec
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(128, 128)->getAbsoluteURL(), 'image/png', '128x128');

        // For Google TV
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(96, 96)->getAbsoluteURL(), 'image/png', '96x96');

        // For Safari on Mac OS
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(32, 32)->getAbsoluteURL(), 'image/png', '32x32');

        // The classic favicon, displayed in the tabs
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(16, 16)->getAbsoluteURL(), 'image/png', '16x16');

    }
protected function GenerateHTML5Favicon(SiteTree $owner, &$metadata, Image $HTML5Favicon) {

        // header
        $metadata .= $owner->MarkupComment('HTML5 Favicon');

//			// Android Chrome 32
        // @todo: Is the Android Chrome 32 196x196 px icon fully redundant ??
//			$metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(196,196)->getAbsoluteURL(), 'image/png', '196x196');

        // Android Chrome 37+ / HTML5 spec
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(192, 192)->getAbsoluteURL(), 'image/png', '192x192');

        // Android Chrome 37+ / HTML5 spec
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(128, 128)->getAbsoluteURL(), 'image/png', '128x128');

        // For Google TV
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(96, 96)->getAbsoluteURL(), 'image/png', '96x96');

        // For Safari on Mac OS
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(32, 32)->getAbsoluteURL(), 'image/png', '32x32');

        // The classic favicon, displayed in the tabs
        $metadata .= $owner->MarkupLink('icon', $HTML5Favicon->Fill(16, 16)->getAbsoluteURL(), 'image/png', '16x16');

    }
Generates markup for the HTML5 favicon

@param SiteTree $owner
@param string $metadata
@param Image $HTML5Favicon

@return void