Working to get exit menu running

communication.c

communication.h

exit_menu_gl.c

glfw_utils.c

images/cursor.png

images/mandelbrot-selected.png

images/mandelbrot.png

images/mandelbrot.psd

images/sph-selected.png

images/sph.png

images/sph.psd

images/terminal-selected.png

images/terminal.png

images/terminal.psd

makefile_macos

renderer.c

shaders/background_es.frag

shaders/background_es.vert

shaders/cursor.frag

shaders/cursor.vert