colors: Use json for all wal generated colors.

pywal/__main__.py

@@ -90,7 +90,6 @@ def process_args(args):
 
         # Create a list of hex colors.
         colors_plain = gen_colors.get_colors(image, args.q)
-        # colors_plain[8] = set_colors.set_grey(colors_plain)
 
         if not args.n:
             wallpaper.set_wallpaper(image)

pywal/gen_colors.py

@@ -9,6 +9,7 @@ import shutil
 import subprocess
 
 from pywal.settings import CACHE_DIR, COLOR_COUNT
+from pywal import set_colors
 from pywal import util
 
 
@@ -96,9 +97,10 @@ def get_colors(img, quiet):
 
     # Cache the sequences file.
     cache_file = pathlib.Path(CACHE_DIR / "schemes" / img.replace("/", "_"))
+    cache_file = pathlib.Path(cache_file.with_suffix(".json"))
 
     if cache_file.is_file():
-        colors = util.read_file(cache_file)
+        colors = util.read_file_json(cache_file)
         print("colors: Found cached colorscheme.")
 
     else:
@@ -111,7 +113,7 @@ def get_colors(img, quiet):
         colors = sort_colors(colors)
 
         # Cache the colorscheme.
-        util.save_file("\n".join(colors), cache_file)
+        util.save_file_json(colors, cache_file)
 
         print("colors: Generated colorscheme")
         if not quiet:
@@ -135,6 +137,9 @@ def sort_colors(colors):
     [colors_hex.update({f"color{index}": color})  # pylint: disable=W0106
      for index, color in enumerate(raw_colors)]
 
+    # Color 8
+    colors_hex["color8"] = set_colors.set_grey(raw_colors)
+
     # Add the colors to a dict.
     colors = {}
     colors["special"] = colors_special

pywal/util.py

@@ -27,6 +27,12 @@ def save_file(colors, export_file):
         file.write(colors)
 
 
+def save_file_json(colors, export_file):
+    """Write the colors to a json file."""
+    with open(export_file, "w") as file:
+        json.dump(colors, file, indent=4)
+
+
 def create_dir(directory):
     """Alias to create the cache dir."""
     pathlib.Path(directory).mkdir(parents=True, exist_ok=True)