Node Editor

Where to find it

The major part of the tree generation process takes place in the node editor. After having installed the addon, a new node tree type should appear in the node editor:

How to use it

Like with any process within blender that requires the node editor, you can add nodes by pressing Shitf + A. A menu will appear, containing 3 sub menus: inputs, tree functions, and output.

Tree Tools

3D view

In the 3d view, you can find modular tree related tools in the toolbar under the tree category.

Image Editor

In the toolbar, under the tree category, you can find the color ramp sampler tool.