For that matter, how would one use the *input_text command for a riddle or question? (Much like in Unnatural’s test).
I can’t help you with changing the appearance of the box, but using *input_text for an answer to a riddle/question is quite easy.
Create a string variable that will hold the player’s answer (let’s call it player_answer). When you ask your question, use *input_text player_answer to show the box. After the player answers, use an *if command to check whether the answer is correct or not by comparing it to a string you want the answer to the current question to be.
In case I explained this badly, here is an example.
*create player_answer ""
*label question1
What mythological creature has the body of a human and the head of a bull?
*input_text player_answer
*if (player_answer = "minotaur")
That is correct!
*page_break
*goto question2
*else
Unfortunately, your answer is incorrect. Try again.
*page_break
*goto question1
*label question2
blah blah blah