Completes first forecast screen (experimental colors). Adds checkable theme in action bar. Fixes bug in show_matching_strings function

space_weather_data.py

@@ -1,5 +1,5 @@
+from PyQt5.QtGui import QPixmap
 from PyQt5.QtCore import pyqtSlot, pyqtSignal, QObject
-
 from threads import UpadteSpaceWeatherThread, ThreadStatus
 
 class SpaceWeatherData(QObject):
@@ -12,6 +12,15 @@ class SpaceWeatherData(QObject):
         self.ak_index = ''
         self.sgas = ''
         self.geo_storm = ''
+        self.images = [QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap(),
+                       QPixmap()]
         self.__update_thread = UpadteSpaceWeatherThread(self)
         self.__update_thread.finished.connect(self.__parse_and_emit_signal)