Enable color output for logging under Windows

Specifically with Windows CMD.

pywal/__main__.py

@@ -15,6 +15,12 @@
 import shutil
 import sys
 
+try:
+    import colorama
+    colorama.just_fix_windows_console()  # NOOP for non-Windows
+except ImportError:
+    pass
+
 from .settings import __version__, CACHE_DIR, CONF_DIR
 from . import colors
 from . import export

setup.py

@@ -8,10 +8,16 @@
     print("error: pywal requires Python 3.5 or greater.")
     sys.exit(1)
 
+is_win = sys.platform.startswith('win')
+
 LONG_DESC = open('README.md').read()
 VERSION = pywal.__version__
 DOWNLOAD = "https://github.com/eylles/pywal16/archive/%s.tar.gz" % VERSION
 
+install_requires = []
+if is_win:
+    install_requires += ['colorama']
+
 setuptools.setup(
     name="pywal16",
     version=VERSION,
@@ -34,6 +40,7 @@
     packages=["pywal"],
     entry_points={"console_scripts": ["wal=pywal.__main__:main"]},
     python_requires=">=3.5",
+    install_requires=install_requires,
     extras_require={
         'colorthief': ['colorthief', ],  # known to work with 0.2.1
         'colorz': ['colorz', ],  # NOTE heavy, scipy dependency