I have had a go at making a skin my self for primo 2.4 (wince) , for my own use (though I have shared it on another forum) and found it pretty tricky.
so I an not an expert on this.
ipaq 31x image explorer v1.01 (for images)
then paintshop pro to create levels of transparency
jiGOLua v1.4 (for some of the code)
heres a download link for you or anyone ,of my skin . it includes instructions on how to remove unwanted functions of the skin which may give you a heads up on how to create one for yourself.
DepositFiles 480-272 (I do have a 800-480 version)
Thanks to GJ-AK for some of the parts I used and modified
TRANSPARENCY IN NAVIGATION SCREEN ( fixed at 50% )
HI VIS ROUTE PROGRESS BAR (on/off)
TMC INFO ON MENU BUTTON
UI LABS, EXTRA SETTINGS ( short cut in settings panel )
BLUETOOTH ( button in navigation menu )
LANE SOUND (with volume control )
NIGHT FILTER (withcontrol )
house numbers (on/off)
compass on quick menu button
map changer ( use included map changer components )
final destination arrow
short cut to control panel ( long press on menu button )
show 5 digit postcode (zip code) -- bit of a hack , but works ( use included global.cfg ) (on/off)
automatic overview (on/ off from final destination arrow button)
sys.txt settings ------- (adjust bluetooth path for other devices)
btappl = "\ windows \ phonelink.exe"
vmorcolanesoundname = "! nav_dingding"
road blocking = "1"