I decided that the pop-overs were almost exactly as annoying/ugly as Clippy was in MS Office 97 so the buttons/coloring are matched to look exactly like that.
To install the icons copy the folder `Icons/Chicago95` to `/usr/share/icons` or `~/.icons`.
In XFCE select Settings -> Appearance. Click on 'Icons' and select `Chicago95`.
### Cursors
To install the cursors copy the folders in `Cursors` to `/usr/share/icons` or `~/.icons`.
In XFCE select Settings -> Mouse and Touchpad. Click on 'Icons' and select `Chicago95`.
### Fonts
Copy the folder `Fonts/vga_font` to `~/.fonts/truetype/` if the `.fonts/truetype` folder doesn't exist just create it before you copy the files.
Update your font cache: sudo fc-cache -f -v
In xfce-term selet the font `Less Perfect DOS VGA` or `More Pefect DOS VGA`.
### Terminal
Copy the file `Extras/Chicago95.theme` to `~/.local/share/xfce4/terminal/colorschemes` (create the colorschemes folder if it doesn't exist: `mkdir .local/share/xfce4/terminal`).
Under preferences in xfce-term select 'Colors.' Under `Presets` you should see `Chicago 95`.
To get the MS-DOS `C:\>` prompt and startup message add the contents of `Extras/DOSrc` to your `.bashrc` file: `cat Extras/DOSrc >> ~/.bashrc`.