23.02.2019 - nathan's Yellow Scale

23.02.2019 - nathan's Green Scale

23.02.2019 - nathan's Blue Scale

23.02.2019 - nathan's Purple Scale

23.02.2019 - nathan's primary 2

23.02.2019 - nathan's secondary

23.02.2019 - nathan's tertiary

23.02.2019 - nathan's quaternary

23.02.2019 - nathan's quintiary (self invented

23.02.2019 - nathan's Palette