TinyMCE is an online rich-text editor released as open-source software under the MIT License. It has the ability to convert HTML text area fields or other HTML elements to editor instances.
I've written 1 blogs about TinyMCE.
Enabling Syntax Highlighting in SilverStripe 4
Posted 4 years ago by Luc Shelton
SilverStripe's backend HTML WYSIWYG editor does not come out-of-the-box with support for inserting code snippets or samples with syntax highlighting enabled.