Improve profit-plot styling

freqtrade/tests/test_plotting.py

@@ -259,6 +259,10 @@ def test_generate_profit_graph():
     assert isinstance(fig, go.Figure)
 
     assert fig.layout.title.text == "Profit plot"
+    assert fig.layout.yaxis.title.text == "Price"
+    assert fig.layout.yaxis2.title.text == "Profit"
+    assert fig.layout.yaxis3.title.text == "Profit"
+
     figure = fig.layout.figure
     assert len(figure.data) == 4