It is a join project by me and Mahesh Nayak. We make an alternative to progress bar where progress is visualized by growing leaf on a leafless tree. Every part of the tree (branches and leaves) are a separate SVG element so it can be attached with data and manipulate accordingly.
It is a binary tree modeled using L-system and the code is inspired by Peter Cook's d3-tree. Since this is a binary tree, the number of branches and trees are multiples of 2.