diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 73f4bad..3b0ff89 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.8'
 
       - name: Install Requirements
         run: pip install .[dev]
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index adde0f5..1afeb29 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.8'
 
       - name: Install Requirements
         run: pip install .[dev]
diff --git a/signwriting/visualizer/test_assets/M518x518S30a00482x483S33e00482x483.png b/signwriting/visualizer/test_assets/M518x518S30a00482x483S33e00482x483.png
deleted file mode 100644
index 5644b00..0000000
Binary files a/signwriting/visualizer/test_assets/M518x518S30a00482x483S33e00482x483.png and /dev/null differ
diff --git a/signwriting/visualizer/test_assets/M530x518S19a30500x482S19a38465x481S22f04509x506S22f14467x504.png b/signwriting/visualizer/test_assets/M530x518S19a30500x482S19a38465x481S22f04509x506S22f14467x504.png
new file mode 100644
index 0000000..6f88b03
Binary files /dev/null and b/signwriting/visualizer/test_assets/M530x518S19a30500x482S19a38465x481S22f04509x506S22f14467x504.png differ
diff --git a/signwriting/visualizer/test_visualize.py b/signwriting/visualizer/test_visualize.py
index 630fa68..a131a55 100644
--- a/signwriting/visualizer/test_visualize.py
+++ b/signwriting/visualizer/test_visualize.py
@@ -46,7 +46,6 @@ def test_image_small_box(self):
 
     def test_image_small_box_is_corrected(self):
         fsw = "M500x500S2ff00407x501S1ce20436x535S2e300413x552S22b04418x565S36520420x523"
-
         image = signwriting_to_image(fsw, trust_box=False)
 
         assets_path = Path(__file__).parent / "test_assets" / f"{fsw}.png"
@@ -55,10 +54,9 @@ def test_image_small_box_is_corrected(self):
         assert_array_equal(np.array(image), np.array(reference_image))
 
     def test_image_with_line_and_embedded_color(self):
-        fsw = "M518x518S30a00482x483S33e00482x483"
-
-        image = signwriting_to_image("M518x518S30a00482x483S33e00482x483",
-                                     line_color=(144, 70, 180, 255), embedded_color=True)
+        fsw = "M530x518S19a30500x482S19a38465x481S22f04509x506S22f14467x504"
+        image = signwriting_to_image(fsw, line_color=(
+            10, 23, 122, 255), fill_color=(255, 255, 255, 0))
 
         assets_path = Path(__file__).parent / "test_assets" / f"{fsw}.png"
         reference_image = Image.open(assets_path)
diff --git a/signwriting/visualizer/visualize.py b/signwriting/visualizer/visualize.py
index c7c4dd3..6b9df38 100644
--- a/signwriting/visualizer/visualize.py
+++ b/signwriting/visualizer/visualize.py
@@ -1,5 +1,6 @@
 from functools import lru_cache
 from pathlib import Path
+from typing import Tuple
 
 from PIL import Image, ImageDraw, ImageFont
 
@@ -20,9 +21,10 @@ def get_symbol_size(symbol: str):
     return right - left, bottom - top
 
 
-# pylint: disable=too-many-locals
-def signwriting_to_image(fsw: str, antialiasing=True, trust_box=True,
-                         line_color: tuple[int, int , int, int]=(0, 0, 0, 255), embedded_color=False) -> Image:
+# pylint: disable=too-many-locals, too-many-arguments
+def signwriting_to_image(fsw: str, antialiasing=True, trust_box=True, embedded_color=False,
+                         line_color: Tuple[int, int, int, int] = (0, 0, 0, 255),
+                         fill_color: Tuple[int, int, int, int] = (255, 255, 255, 255)) -> Image:
     sign = fsw_to_sign(fsw)
     if len(sign['symbols']) == 0:
         return Image.new('RGBA', (1, 1), (0, 0, 0, 0))
@@ -53,7 +55,7 @@ def signwriting_to_image(fsw: str, antialiasing=True, trust_box=True,
         x, y = symbol["position"]
         x, y = x - min_x, y - min_y
         symbol_id = key2id(symbol["symbol"])
-        draw.text((x, y), symbol_fill(symbol_id), (255, 255, 255, 255), fill_font)
+        draw.text((x, y), symbol_fill(symbol_id), fill_color, fill_font, embedded_color=embedded_color)
         draw.text((x, y), symbol_line(symbol_id), line_color, line_font, embedded_color=embedded_color)
 
     return img