White text on the yellow box

The white text on the yellow box is extremely difficult to read, even in a room with the lighting turned down. Unfortunately, with the quiz I just conducted, several questions became unworkable.

Hence, I am now faced with the dilemma of moving to another platform to run my quiz for future classes.

If there is a way to change the font color to black or font size, the problem could be rectified.

Regards,

Colin