For those that haven't got version 1 of AOM light editor yet and don't know what Im talking about. AOM Light Editor is a program which makes it easy to create custom lighting settings for use in Age Of Mythology.
You simply need to enter the name of the light setting, select the colours for each different types of light. Select the position and Strength of the sun by entering the sun inclination and sun rotation values. Then save the file in your Age Of Mythology Data folder and they will be avaliable for you to use in the games map editor.
You can also open and edit lgt(Light Setting) files made by other users of by ES.
This is what it looks like:
The program comes with plenty of samples made by me and cheezey monkey. get it here Enjoy.