About Titanium Anodizing:
Titanium anodizing involves no dyes or paint. Color is obtained by increasing the thickness of the natural oxide layer on the metal; light refracts differently through the different thicknesses, producing different colors.

Kierra
Magenta letters and accents with Dark Blue distressed main body

Ellie
Teal letters and accents with Bronze distressed main body

Lexi
Teal letters and accents with Irradecent fuchia distressed main body

Tachy
Gold letters accents with Dark Blue main body
Cleaning:
Titanium anodizing is immune to time and most chemicals. However, oils and dirt can dull the color.
I have found Windex (or similar) can restore the vibrant colors.