diff --git a/grum/theme.py b/grum/theme.py
index 6f4cb13..1810a09 100644
--- a/grum/theme.py
+++ b/grum/theme.py
@@ -1,24 +1,29 @@
-from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QPalette, QColor
 import pyqtgraph as pg
 
 
-WHITE = Qt.white
+def QGrey(i):
+    return QColor(i, i, i)
+
 
 VIOLET = QColor("#792953")
 BLUE   = QColor("#003e6e")
 
 HIGHLIGHT = VIOLET
 
-GREY0 = QColor(25, 25, 25) # dark
-GREY1 = QColor(35, 35, 35)
-GREY2 = QColor(50, 50, 50)
-GREY3 = QColor(125, 125, 125)
-GREY4 = QColor(200, 200, 200) # light
+GREY0 = QGrey(25) # dark
+GREY1 = QGrey(35)
+GREY2 = QGrey(50)
+GREY3 = QGrey(125)
+GREY4 = QGrey(150)
+GREY5 = QGrey(200) # light
 
-MDI_BKG = QColor(150, 150, 150)
+WHITE = QGrey(255)
 
-DOT_PEN = GREY4
+
+MDI_BKG = GREY4
+
+DOT_PEN = GREY5
 DOT_BRUSH = HIGHLIGHT
 DOT_SIZE = 8
 
@@ -68,13 +73,13 @@ def make_palette():
 
 
 def apply_pg():
-    pg.setConfigOption("foreground", "w")
+    pg.setConfigOption("foreground", WHITE)
     pg.setConfigOption("background", GREY0)
 
 
 def pg_plot_style():
     pen = pg.mkPen(
-        GREY4,
+        DOT_PEN,
         width=3
     )