All Anime World

Message display? Like in "WriteLn?"

Actually it would be closer to MsgBox().
The displaybox will take a string passed to it in a psudo Rich Text Format and display it in a box on the screen the same way you see text displayed in a box on a RPG or dating sim game.

The function will be able to read a string that looks like this "<CharTag=Dasiy>Welcome to my <FontColor=Red>store.<FontColor=Black><EOL><CharTag=Dasiy>Maybe you would be interested in this card. It is <FontColor= 0000FF><Var=CardCost><FontColor=Black> gold pieces.<EOL><EOS>

And display the Display box on the screen with the appropriate graphics.

I assume there is already a tool for that, if you just go with HTML and use the Gecko rendering engine which is Open Source and free for all. Wrong?

I had never heard of the Gecko rendering engine before. I will have to look into that.

Well Mozilla Firefox is reportedly built on Gecko. And if not it's still possible to display a big message box isn't it ;))