What is the fine-grained topic of the following text: Algorithme is currently launching a t-shirt collection featuring uniquely Danish illustrations embellished with workmanship by skilled immigrant handcrafters in a collaboration with Neutral, a sustainable t-shirt brand, Marta aims to promote diversity and sustainable design throughout her brand and projects. Only return the topic.
Algorithme's launch of a sustainably designed t-shirt collection featuring Danish illustrations and promoting diversity.