[Q] Guide to creating a theme

[rayraynz]

Hi all
Does anyone know of a good guide that shows you how to create a theme for a galaxy s6?

I am wanting to make a theme that uses the standard icons, but has some darker colours in the sms/phone app.
I dont like the theme store AMOLED friendly / black themes because they dont have enough colour and we loose the defaut iconset.

Basically if i can take the standard theme and modify a few things I'd be happy

Whenever I try to search for answers, all i seem to be able to find is references to some elusive and unobtainable theme creation tool that samsung was ment to release back in April.
I am just after the tool or a guide right now, i dont want to add my themes to the samsung theme store.

 

[rayraynz]

foundit

Oooh looks like this site is now back up again
developer.samsung.com/theme#mytheme

Edit: Nevermind that doesnt do the job
It is a super basic editor that just allows you to add wallpapers and icons - it wont let you change the background and coloring of the sms and phone apps.