Updated assets

assets/images/Makefile

assets/images/amoled.png

assets/images/amoled@220.png

assets/images/amoled@266.png

assets/images/amoled@335.png

assets/images/amoled@352.png

assets/images/amoled@532.png

assets/images/amoled@thumb.jpg

assets/images/dracula.png

assets/images/dracula@220.png

assets/images/dracula@266.png

assets/images/dracula@335.png

assets/images/dracula@352.png

assets/images/dracula@532.png

assets/images/dracula@thumb.jpg

assets/images/generate_makefile.sh

assets/images/gruvbox_dark.png

assets/images/gruvbox_dark@220.png

assets/images/gruvbox_dark@266.png

assets/images/gruvbox_dark@335.png