You may not have noticed that you can now play with your font style and size using the settings found by clicking on the gear control at the top of the lesson. You will see that there is now an option to increase and decrease font size as well as the ability to toggle through available font style options. Hopefully, this gives you the option to customize the lesson display to make it the way you want it!
I, for one, had not noticed it. Thank you for alerting us to the new feature!