diff --git a/scripts/gen_theme_previews.py b/scripts/gen_theme_previews.py
index 11cb759..3b3847d 100644
--- a/scripts/gen_theme_previews.py
+++ b/scripts/gen_theme_previews.py
@@ -7,8 +7,7 @@ from pathlib import Path
 
 def get_all_input_files(input_dir: str) -> List[str]:
     filenames = next(os.walk(input_dir), (None, None, []))[2]
-    files = filter(lambda f: (f.endswith("yaml")
-                   or f.endswith("yml")), filenames)
+    files = filter(lambda f: (f.endswith("yaml") or f.endswith("yml")), filenames)
     return list(files)
 
 
@@ -17,14 +16,16 @@ def ensure_output_dir(output_dir: str):
         os.makedirs(output_dir)
 
 
-def add_color_to_dict(output: Dict[str, str], obj: Dict[str, str], key: str, prefix: Optional[str] = None):
+def add_color_to_dict(
+    output: Dict[str, str], obj: Dict[str, str], key: str, prefix: Optional[str] = None
+):
     if not prefix:
         prefix = ""
     output[f"{prefix}{key}"] = obj[key]
 
 
 def get_color_dict(input_dir: str, file_name: str) -> Dict[str, str]:
-    file = open(os.path.join(input_dir, file_name), 'r')
+    file = open(os.path.join(input_dir, file_name), "r")
     loaded_theme = yaml.safe_load(file)
     output = {}
     add_color_to_dict(output, loaded_theme, "accent")
@@ -43,7 +44,7 @@ def get_color_dict(input_dir: str, file_name: str) -> Dict[str, str]:
 
 
 def file_name_to_display(file_name: str) -> str:
-    file_name = Path(file_name).with_suffix('').name
+    file_name = Path(file_name).with_suffix("").name
 
     split = file_name.split("_")
     output = []
@@ -62,14 +63,16 @@ def gen_svg_for_theme(color_dict: Dict[str, str], svg_template: str) -> str:
 
 def main():
     parser = argparse.ArgumentParser(
-        description='Generate README.md with embedded SVG previews.')
-    parser.add_argument('input_dir', type=str,
-                        help='Directory from which to read in all Warp themes.')
-    parser.add_argument('output_dir', type=str, help='Where to save README.md')
-    parser.add_argument("svg_path", type=str,
-                        help="Path to svg template file.")
-    parser.add_argument("intro_file", type=str,
-                        help="What should go on top of README.md.")
+        description="Generate README.md with embedded SVG previews."
+    )
+    parser.add_argument(
+        "input_dir", type=str, help="Directory from which to read in all Warp themes."
+    )
+    parser.add_argument("output_dir", type=str, help="Where to save README.md")
+    parser.add_argument("svg_path", type=str, help="Path to svg template file.")
+    parser.add_argument(
+        "intro_file", type=str, help="What should go on top of README.md."
+    )
     args = parser.parse_args()
 
     ensure_output_dir(args.output_dir)
@@ -78,11 +81,11 @@ def main():
     markdown = []
     markdown.append("|Theme name | Preview|")
     markdown.append("| --- | --- |")
-    svg = open(args.svg_path, 'r').read()
+    svg = open(args.svg_path, "r").read()
     svg_dir = os.path.join(args.output_dir, "previews")
     os.makedirs(svg_dir, exist_ok=True)
 
-    intro = open(args.intro_file, 'r').read()
+    intro = open(args.intro_file, "r").read()
 
     for input_file in sorted(filenames):
         print(f"Generating for {input_file}")
@@ -90,13 +93,13 @@ def main():
         color_dict = get_color_dict(args.input_dir, input_file)
         theme_svg = gen_svg_for_theme(color_dict, svg)
         theme_svg_path = os.path.join(svg_dir, f"{input_file}.svg")
-        with open(theme_svg_path, 'w') as svg_out:
+        with open(theme_svg_path, "w") as svg_out:
             svg_out.write(theme_svg)
         cell += f"<img src='previews/{input_file}.svg' width='300'>|"
         markdown.append(cell)
 
     output_str = intro + "\n".join(markdown)
-    with open(os.path.join(args.output_dir, "README.md"), 'w') as output:
+    with open(os.path.join(args.output_dir, "README.md"), "w") as output:
         output.write(output_str)
 
 
diff --git a/scripts/preview.svg b/scripts/preview.svg
index 213ef1d..4f30d3b 100644
--- a/scripts/preview.svg
+++ b/scripts/preview.svg
@@ -1,5 +1,5 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 145">
-<rect width="300" height="145" class="Dynamic" fill="{background}" rx="5" /> 
+<rect width="300" height="145" class="Dynamic" fill="{background}" rx="5" />
 
 <!-- first command -->
 <text x="15" y="15" fill="{foreground}" font-size="0.6em" font-family="monospace" class="Dynamic">ls</text>
@@ -88,4 +88,3 @@ git(
 <!-- cursor -->
 <line x1="15" y1="120" x2="15" y2="130" style="stroke-width:2" class="Dynamic" stroke="{accent}" />
 </svg>
-