You will be able to create further day types by clicking on the "New (Insert)" button, which can be found on the Day Types toolbar. Type in a name for the new day type, and then press the <Return> key on your keyboard. On the colour palette dialog, choose a colour for the day type, and then click "OK". You are now ready to add the day type to the calendar grid (see the Editing Day Types topic).
The colour of a day type can be changed by highlighting the day type in the "Day Types" box. Do this by clicking once on the day type. It will now be displayed as white text on a blue background. Right-click on the highlighted day type, and then click "Edit Colour" on the context menu. On the colour palette, select a new colour, and then click "OK".