Added comments for new terminal configurations

src/main/resources/config/filius.ini

@@ -53,4 +53,12 @@ old-exchange-dialog=0
 # pane-height=1500
 
 # If the hardware component NAT Gateway / Home Router is available.
-# gateway=0
\ No newline at end of file
+# gateway=0
+
+# Appearance configuration of the terminal window. The font size must be an integer
+# value in pixels. The background and foreground colors must be hexadecimal RGB
+# values in pixels. The background and foreground colors must be hexadecimal RGB
+# values. Default is 11px font size, black background, white foreground
+# font-size=11
+# background-color=#000000
+# foreground-color=#ffffff