Instead of icon, use unicode refresh. Minor issues with image and GUI flickering

gui/builtinViewColumns/price.py

@@ -54,11 +54,9 @@ class Price(ViewColumn):
         def callback(item):
             price = sMkt.getPriceNow(item.ID).price
             colItem.SetText(formatAmount(price, 3, 3, 9, currency=True) if price else "")
-            colItem.SetImage(-1)
-            display.SetItem(colItem)
+            display.SetItem(colItem)    
 
         sMkt.waitForPrice(mod.item, callback)
-        return self.fittingView.imageList.GetImageIndex("refresh_small", "icons")
 
     def getImageId(self, mod):
         return -1

gui/display.py

@@ -249,10 +249,10 @@ class Display(wx.ListCtrl):
                 oldImageId = colItem.GetImage()
                 newText = col.getText(st)
                 if newText is False:
-                    newImageId = col.delayedText(st, self, colItem)
-                    newText = ""
-                else:
-                    newImageId = col.getImageId(st)
+                    col.delayedText(st, self, colItem)
+                    newText = u"\u21bb"
+
+                newImageId = col.getImageId(st)
 
                 colItem.SetText(newText)
                 colItem.SetImage(newImageId)