Make points for Event DS plots show up

Close #263 (closed)

Make the default color for the points in dotForTime plots change with the background color. Currently, the points are colored white if the background is black and vice versa.

sohstationviewer/view/plotting/plotting_widget/plotting.py

@@ -266,8 +266,12 @@ class Plotting:
         :param ax: axes to plot channel
         :return ax: axes of the channel
         """
-        # Set the color to white by default
-        color = '#000000'
+        # Set the default color to black or white depending on the background
+        # color of the plot
+        if self.main_window.color_mode == 'B':
+            color = '#FFFFFF'
+        elif self.main_window.color_mode == 'W':
+            color = '#000000'
         if chan_db_info['valueColors'] not in [None, 'None', '']:
             color = chan_db_info['valueColors'].strip()[6:]
         x_list = c_data['times']