Achievement description editing

Hi,

I am struggling to read the bottom piece of wp achievements settings. I am using learndash and the options at the bottom has a tick box, the only problem is that when I tick it the text in the box is black – as is the background.

What does this option do? And what do the 2 tick boxes which subsequently appear do?

Thank you – great plugin.

ant

https://wordpress.org/plugins/achievements/