[Scripting Question] Character Avatars like in Generation Zero

Hi! I was wondering if anyone knows how to make character avatars like those in that old fangame Generation Zero.
Here's an example of what I mean:


Thanks! =D

Edit: Alternatively, if there's any way to just put the square avatars back in the text box like in default RPG Maker, that could work for now.

For your first question:
https://reliccastle.com/resources/23/

For your second:
http://pokemonessentials.wikia.com/wiki/Messages

If you want the background box with custom size just use the first but include the box in your graphics assets.

Thanks so much! =D