Install libsdl-gfx1.2-5 by entering the following commands in the terminal:
sudo apt update sudo apt install libsdl-gfx1.2-5
Description:
drawing and graphical effects extension for SDL
The SDL_gfx library is an extension to the SDL library which provides basic antialiased drawing routines such as lines, circles or polygons, an interpolating rotozoomer for SDL surfaces, framerate control and MMX image filters. . This package contains the SDL_gfx runtime library.
Homepage: http://www.ferzkopp.net/Software/SDL_gfx-2.0/
Version: 2.0.25-9
Section: universe/libs