It would be great to have an option to change the table colors without using the html tags. E.g. to make the table headers darker then the rows.
We have implemented HTML WYSIWYG editor with options to change the table cell color. You can switch a specific article from markdown to WYSIWYG editor by changing the article settings or at project level in project general settings.
We are looking at options to achieve this. We will be resolving this soon.