AEM Touch UI- RTE - new Style plugin
https://aemlab.blogspot.com/2019/07/aem-rte-custom-plugins-1.html
Packages at GitHub
aem63app-repo/README.MD at master · arunpatidar02/aem63app-repo · GitHub
I hope you will find this plugin helpful.
Please feel free to leave comments for extension and improvements.
Arun Patidar