Vertex label color in mpl

src/igraph/drawing/matplotlib/graph.py

@@ -315,6 +315,11 @@ def _draw_vertex_labels(self):
                 vertex.label_size,
             )
 
+            label_color = kwds.get(
+                "vertex_label_color",
+                vertex.label_color,
+            )
+
             # Locate text relative to vertex in data units. This is consistent
             # with the vertex size being in data units, but might be not fully
             # satisfactory when zooming in/out. In that case, revisit this
@@ -337,6 +342,7 @@ def _draw_vertex_labels(self):
                 xytext=xytext,
                 textcoords="offset points",
                 fontsize=label_size,
+                color=label_color,
                 ha="center",
                 va="center",
                 clip_on=True,

tests/drawing/matplotlib/test_graph.py

@@ -48,6 +48,18 @@ def test_basic(self):
         fig, ax = plt.subplots()
         plot(g, target=ax, layout=self.layout_small_ring)
 
+    @image_comparison(baseline_images=["graph_labels"], remove_text=True)
+    def test_labels(self):
+        plt.close("all")
+        g = Graph.Ring(5)
+        fig, ax = plt.subplots(figsize=(3, 3))
+        plot(
+            g, target=ax, layout=self.layout_small_ring,
+            vertex_label=['1', '2', '3', '4', '5'],
+            vertex_label_color='white',
+            vertex_label_size=16,
+        )
+
     @image_comparison(baseline_images=["graph_layout_attribute"], remove_text=True)
     def test_layout_attribute(self):
         plt.close("all")