flammable
Configures how this block interacts with vanilla fire.
igniteOdds controls how easily fire spreads into nearby air, while burnOdds controls how easily existing fire consumes this block. These values are weights, not percentages. ignitedByLava controls whether lava can ignite fire next to this block.
For reference, vanilla uses 5, 5 for logs, 5, 20 for planks, 30, 60 for leaves, and 60, 100 for grass and flowers.