Surface Wizard
Surface Wizard is the meshing step inside the older Surface Decoration 1.0: it sweeps the skeleton into a mesh, with settings for resolution along and around the branches (Rows and Columns), skeleton simplification, subdivision, decimation, end caps, width smoothing, surface smoothing, twist, UV scale and displacement. Surface Decoration 1.0 and Surface Wizard are hidden from the Tab menu and kept so older scenes keep working.
For new trees, use Surface Decoration, which has its own meshing controls and doesn't use Surface Wizard.
Surface Resource
Surface Resource holds a surface material, colour, normal and roughness textures with a tint and optional displacement, for a Surface Decoration or an assembly kit.
Switch
Switch sends growth down one of two paths depending on a condition, such as height or an attribute from your source points.