Stack for citation with the ability to use avatars and indicating the author and source. Avatars have a size of 100x100px, the border can be on or off. You can show the author of the quote and source. The background and text color, text style, and text font are customizable. You can choose the default font, sans serif, serif, monospace, Google Font.
All this can be seen in the examples and screenshots of the settings menu.