all using page layout

Signed-off-by: Micky Ching <mickyching@gmail.com>
remove grey-color-dark

Signed-off-by: Micky Ching <mickyching@gmail.com>
update tools

Signed-off-by: Micky Ching <mickyching@gmail.com>
add formula

Signed-off-by: Micky Ching <mickyching@gmail.com>