Add alternate colors for fitting pane (for dark mode on macos)

config.py

@@ -58,13 +58,32 @@ LOGLEVEL_MAP = {
 
 CATALOG = 'lang'
 
-slotColourMap = {
-    FittingSlot.LOW: wx.Colour(250, 235, 204),  # yellow = low slots
-    FittingSlot.MED: wx.Colour(188, 215, 241),  # blue   = mid slots
-    FittingSlot.HIGH: wx.Colour(235, 204, 209),  # red    = high slots
-    FittingSlot.RIG: '',
-    FittingSlot.SUBSYSTEM: ''
-}
+isDark = False
+try:
+    isDark = wx.SystemAppearance().IsDark()
+except (KeyboardInterrupt, SystemExit):
+    raise
+except:
+    pass
+
+
+if isDark:
+    slotColourMap = {
+        FittingSlot.LOW: wx.Colour(44, 36, 19),  # yellow = low slots 24/13
+        FittingSlot.MED: wx.Colour(28, 39, 51),  # blue   = mid slots 8.1/9.5
+        FittingSlot.HIGH: wx.Colour(53, 31, 34),  # red    = high slots 6.5/11.5
+        FittingSlot.RIG: '',
+        FittingSlot.SUBSYSTEM: ''}
+    errColor = wx.Colour(70, 20, 20)
+else:
+    slotColourMap = {
+        FittingSlot.LOW: wx.Colour(250, 235, 204),  # yellow = low slots
+        FittingSlot.MED: wx.Colour(188, 215, 241),  # blue   = mid slots
+        FittingSlot.HIGH: wx.Colour(235, 204, 209),  # red    = high slots
+        FittingSlot.RIG: '',
+        FittingSlot.SUBSYSTEM: ''}
+    errColor = wx.Colour(204, 51, 51)
+
 
 def getClientSecret():
     return clientHash