phpBB Version: 3.0.0
Description: A Light Skin that comes in 4 colors
1) Copy the SimpleLight skin folders in the phpbb styles folder
2) Go to Admincp >> Styles
3) Find The Style and Press Install
4) In the Options field check the "Make default style:" to yes
5) Your Style should now be active, i have experienced the screen going white but have no fear the style is installed.
6) Go to Admincp >> Usergroups >> manage groups (left hand side) >> Administrator >> settings
7) Scroll down to find Group colour:
8) Adjust Admin color
9) Do the same for other user groups.