This is the quest in 3.5.244 in the Standard Light theme, and in Standard Dark.

This is the same quest in 3.5.245 in the Standard Light theme, and in Standard Dark.

This is what the text editor screen for that quest looks like, I even used the reset button to return it to the default font and color.

Looks like I forgot to set the theme colour on the text description. I'll send out a build later to fix it