How to approach trends item

Hello There,

I am an Author of ThemeForest, I have become an Author in this year. But I have been using ThemeForest for the last 4 years to buy products and using them for my clients. Now my question is, I have seen a lot’s of WordPress themes were Trending Iteam. What is the qualification to get Trending Item? Legal Station is one of my best products among of few, I got upto 10 sales as well. I wish It becomes Trending Item. Suggest me please…

Thanks in advance
Sumon Rahman