Before I dive into Squiffy, I need to know that I'll be able to customize the font/color of the text and background. I only want the background to be black and the text to be white courier font. Will the latest version of Squiffy support this customization?

You can set the font, text color, and background color using CSS. See this thread: https://textadventures.co.uk/forum/squiffy/topic/5990/how-can-i-make-the-squiffy-background-black

Ah, thank you! I feel silly for not finding that on my own, much appreciated!