Read the following context and choose the best option to answer the question.
Context: I usually use Minwax mahogany gel stain as a glaze , but my can had dried up . A little experimentation found that Bartley dark brown gel stain mixed with a little of their Pennsylvania , resulted in a nice color . The glazing is very simple , just slap on a thick coat and wipe the excess until you get an effect that pleases you . Like with the filler , you should work in small sections until you get the hang of it .
Question: Why is the narrator doing experimentation with color patterns ?
Options: 
- Their favorite color is used up .
 - They want a new theme .
 - None of the above choices .
 - They want a change .


Their favorite color is used up .