diff --git a/Makefile b/Makefile
index df536db..0d8a870 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,7 @@
 all: build/s4f-regionalgruppen-logos.zip
 
 
-build/bars.pdf: plot_bars.py | build
-	python plot_bars.py
-
-
-build/s4f_logo_dortmund.pdf: regionalgruppen.txt build/bars.pdf logo.tex create_logos.py
+build/s4f_logo_dortmund.pdf: regionalgruppen.txt logo.tex create_logos.py
 	python create_logos.py
 
 
diff --git a/create_logos.py b/create_logos.py
index 31e2e63..7047811 100644
--- a/create_logos.py
+++ b/create_logos.py
@@ -66,6 +66,14 @@ def build_logo(regionalgruppe):
             '--export-plain-svg=' + filename + '.svg',
         ], cwd=OUTDIR, stdout=sp.PIPE, check=True)
 
+        sp.run([
+            'inkscape',
+            filename + '.pdf',
+            '--without-gui',
+            '--export-text-to-path',
+            '--export-pdf=' + filename + '.pdf',
+        ], cwd=OUTDIR, stdout=sp.PIPE, check=True)
+
     print(regionalgruppe, 'done')
 
 
diff --git a/logo.tex b/logo.tex
index 75ab790..f86ce64 100644
--- a/logo.tex
+++ b/logo.tex
@@ -29,7 +29,7 @@
 
     \begin{scope}
       \clip (0, 0) circle (3.34cm);
-      \node[anchor=center] at (0, 0) {\includegraphics[height=6.68cm]{build/bars.pdf}};
+      \node[anchor=center] at (0, 0) {\includegraphics[height=6.68cm]{warming_stripes_circle.pdf}};
     \end{scope}
 
     \path[
diff --git a/plot_bars.py b/plot_bars.py
deleted file mode 100644
index dc503d3..0000000
--- a/plot_bars.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import matplotlib.pyplot as plt
-from matplotlib.patches import Rectangle
-from matplotlib.collections import PatchCollection
-import pandas as pd
-
-plt.rcParams['font.family'] = 'Open Sans'
-
-URL = 'https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.csv'
-
-df = pd.read_csv(
-    URL,
-    skiprows=1,
-    index_col=0,
-    na_values='***',
-)
-year_mean = df['J-D'].dropna()
-
-
-fig = plt.figure(figsize=(4, 4))
-ax = fig.add_axes([0, 0, 1, 1])
-ax.set_axis_off()
-
-
-cmap = plt.get_cmap('RdBu_r')
-
-rectangles = [Rectangle((year, 0), 1, 1) for year in year_mean.index]
-col = PatchCollection(rectangles)
-col.set_array(year_mean)
-col.set_cmap(cmap)
-ax.add_collection(col)
-
-ax.set_ylim(0, 1)
-ax.set_yticks([])
-ax.set_xlim(1880, 2019)
-fig.savefig('build/bars.pdf')
diff --git a/warming_stripes_circle.pdf b/warming_stripes_circle.pdf
new file mode 100644
index 0000000..d1a290a
Binary files /dev/null and b/warming_stripes_circle.pdf differ