usage: main.py [-h] [-c COLOR] filename

Convert an bitmap to SVG and use turtle libray to draw it.

positional arguments:
  filename              The file(*.jpg, *.png, *.bmp) name of the file you
                        want to convert.

optional arguments:
  -h, --help            show this help message and exit
  -c COLOR, --color COLOR
                        How many colors you want to draw.(If the number is too
                        large that the program may be very slow.)