{"version":"1.0","provider_name":"web design &amp; Host domain provider","provider_url":"https:\/\/8899.ir\/web","title":"Regenerate old thumbnails after changing a theme - web design &amp; Host domain provider","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"9feZ8BJ9Ea\"><a href=\"https:\/\/8899.ir\/web\/stp-web-20261016-thumbnails-en\/\">Regenerate old thumbnails after changing a theme<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/8899.ir\/web\/stp-web-20261016-thumbnails-en\/embed\/#?secret=9feZ8BJ9Ea\" width=\"600\" height=\"338\" title=\"&#8220;Regenerate old thumbnails after changing a theme&#8221; &#8212; web design &amp; Host domain provider\" data-secret=\"9feZ8BJ9Ea\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/8899.ir\/web\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/8899.ir\/web\/wp-content\/uploads\/2026\/10\/stpweb_20261016-72d59c4ecff8cf3d-thumbnails-en.webp","thumbnail_width":800,"thumbnail_height":600,"description":"Regenerate old thumbnails after changing a theme A theme change may require image sizes that were never generated for older uploads. reGenerate Thumbnails Advanced can recreate the required image sizes. Back up both files and the database before running the process. Install and activate the plugin only from its official WordPress page. Review the available [&hellip;]"}