What is your favorite color? Do you often wear fashion items in that color? As for me, my favorite color is green, but I felt it did not go well with my skin tone, so I used to avoid wearing it. One day, I realized that green has many shades, so I experimented with various shades of green and eventually, I found that a deep green helps me look great. If you like a certain color, you can try various shades like I did, and find one that suits you.
In the last sentence, what does did refer to?
I thought it meant "tried various shades". But some argues that it means "experimented with various shades of green". So the question is whether the auxiliary did can refer to a verb phrase in a previous sentence.