| flametree_grow | Generate the data specifying a flametree |
| flametree_plot | Create a plot from a flametree data frame |
| flametree_save | Save the plot |
| sparks | Spark functions to control tree growth |
| spark_decay | Spark functions to control tree growth |
| spark_linear | Spark functions to control tree growth |
| spark_nothing | Spark functions to control tree growth |
| spark_random | Spark functions to control tree growth |