I created my own svg file to make this 3D logo using Adobe Illustrator. I made this logo for my nieces who are studying at UGA in the city of Athens, Georgia, US. 

This is one STL file.

Colors to use are: black, white and red.

Add a gcode to change filaments at the following layers:

Start with black color

White color at layer 8

Red color at layer 14

Filament: PLA

3D printer: Ender 3

No supports

Resolution 0.2 mm

Infill 15%

Nozzle 0.4 mm