Installation:

• Copy files to the "plugins" folder of CKEditor, then add `config.extraPlugins = 'katex';` in config.js.
  Please note, source code is ECMAScript 2016+. If you need to support old browsers, transpile the code on your own.
• Or use official builder "https://ckeditor.com/cke4/builder".

Configuration:

// [Required] Pathes to the CSS and JS files of katex library.
config.katexLibCss = '';
config.katexLibJs = '';

// Default class of an element that will be converted into a widget.
config.katexClass = 'math-tex';

// List of delimiters to look for math. Each delimiter is array of:
// left delimiter (String), right delimiter (String), display mode (Boolean).
// By default `\(` and `\[` are used, but `$` and `$$` are also supported.
config.katexDelimiters = [...];

// Additional options to pass into `katex.renderToString`.
config.katexOptions = {...};

WProofreader is an external solution for an advanced check of text for any spelling, grammar or style problems. It provides both as you type and on-click proofreading modes in a convenient UI. End users just need to hover on the marked words for instant corrections or have the whole text proofread at once in a separate dialog. 

Here’s why WProofreader:

• Available as a standalone secure solution on your server or as an annual subscription to the service hosted by WebSpellChecker.
• Out-of-the-box offer supports spell check in 17 languages and grammar check in 15 out of 17 default languages:  American English, British English, Brazilian Portuguese, Canadian English, Canadian French, Danish, Dutch, Finnish, French, German, Greek, Italian, Norwegian Bokmal, Portuguese, Spanish, Swedish and Ukrainian.
• There are also over 150 additional languages and specialized dictionaries such as Medical and Legal available. You can check the full list here. 
• Personal user dictionaries. Some rare or field-specific words may be not recognized by our proofreading engine and reported as a mistake. If the word is spelled correctly, a user can add it to their own dictionary to prevent it from being reported in the future.
• Global custom dictionaries are company-wide vocabularies, which are created and set at an admin level on top of the base languages.
• WAI-compliant, up to WCAG 2.1 and Section 508 accessibility standards.
• All modern web browsers are supported including the latest stable versions of Chrome, Firefox, Safari, MS Edge, and Internet Explorer 11 and native mobile browsers such as iOS Safari and Chrome for Android.

WProofreader is a commercial solution developed and provided by WebSpellChecker. You can obtain the license here.

Draw your customers’ attention to your bestsellers and promotions in a beautiful slider or carousel.

• Upload photos to your slider to highlight your best products and increase traffic to your popular products.
• Create a product image slider
• Use customer images and testimonials in your slider
• Highlight promotions and discounts in a slider
• Showcase new additions to your store in a slider
• Promote your best-sellers in an image slider
• Show off your collections in a slider
• Create a slider for banner images
• Add call-to-action buttons and descriptions to your slider banners to get customers to relevant pages quickly.
• Choose between several eye-catching slider transition styles.
• Highly customizable design for Image Slider + Carousel: pick custom colors and fonts, adjust size, add borders, and more.
• Image Slider + Carousel supports text in any language.
• Image Slider + Carousel is mobile responsive on any device.
• Instant access to 50+ POWr plugins, such as Social Feed for fresh content on your site and Popup for stellar landing page conversion.

Customer Support You Can Count On

If you have any questions or need help getting Multi Slider up and running, we’re here to help! Please visit our Help Center for tips, support, and answers to common questions.

Make your product and company images come to life with a beautiful Pinterest-style gallery or lookbook.

• Upload photos to create a product grid gallery or lookbook, press galleries, a gallery for your team, or a user testimonial gallery.
• Add titles and caption text.
• Use call-to-action buttons to direct users to another page.
• Add alt text to each photo to optimize images for SEO.
• Enable a lightbox popup to let customers take a closer look at your photos.
• Text search to let users filter your gallery entries (photos) by keywords in the captions.
• Highly customizable design: adjust spacing between gallery entries, choose ideal photo size, add borders, pick custom fonts for captions, and more.
• Supports text in any language.
• Mobile responsive on any device.
• Get instant access to 50+ POWr plugins, such as Social Feed for fresh content on your site and Popup for stellar landing page conversion to complement Photo Gallery.

Customer Support You Can Count On

If you have any questions or need help getting Photo Gallery up and running, we’re here to help! Please visit our Help Center for tips, support, and answers to common questions.