a. The colors of the speaker, surface, edge, indicator light and logo can be made in all the colors you want.
b. The light and oil window can be customized into different shapes for free.
c. The tank capacity can be customized such as 0.8ml, 1.2mm and so on.
d. The logo can be printed on the front, back, sides and wherever you want. There is still space available for printing flavors.
In a word, there are endless possibilities to make a special version for your brand, feel free to press me to discuss a perfect solution to make a unique design here.