diff --git a/Xdefaults b/Xdefaults
index e975e2b..2ff5735 100644
--- a/Xdefaults
+++ b/Xdefaults
@@ -13,3 +13,8 @@ urxvt*matcher*button:    1
 urxvt*scrollTtyOutput:   false
 urxvt*scrollWithBuffer:  true
 urxvt*scrollTtyKeypress: true
+
+urxvt.keysym.C-Up:       perl:font-size:increase
+urxvt.keysym.C-Down:     perl:font-size:decrease
+
+urxvt*color4:            rgb:4444/4444/ffff