Oh you are right i was blind sorry 😀

I have same problem, perhap's it's can be good to change this, beacause it's not user friendly !

First small problem i find in your perfect forum 😉

I am having a similar problem. I tried to write a post in forum and selected text and colorized it in the WYSIWYG. After post submission the text is showing w/o color, seems like style=color has strippted from span tag. Is this a bug or there is an option that I forgot to switch off/on? I even went to database and confirmed that the post body does not have a color tag. Please help.

fixed by adding the line below to wp-content/plugins/wpforo/wpf-includes/functions.php after $allowed_html['p']['dir'] = TRUE; 

$allowed_html['span']['style'] = TRUE;