https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/summary-card-with-large-image
<meta name="author" content="<?= htmlspecialchars($json->developer->name) ?>"/>
<link rel="stylesheet" type="text/css" href="../ouya-game.css"/>
<link rel="icon" href="../favicon.ico"/>
+ <meta name="twitter:card" content="summary_large_image"/>
<meta property="og:title" content="<?= htmlspecialchars($json->title); ?>" />
<meta property="og:description" content="<?= htmlspecialchars(substr(strtok($json->description, '.!'), 0, 200)); ?>." />
<meta property="og:image" content="<?= htmlspecialchars($json->tileImage); ?>" />