In this app Nodes and Root are only modified in render_thread_to_surface.
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OJESH4QDNMWBILBTSFQ7ZZWL34XDOOOCO4SQDNS2YUNEBGRZ5KDAC
HMH2GYB6BLH4HE7N6J6ZK57RKFICWXSU3KJL7EGYTXJ5DC5XHBIQC
H2KZUAWHQXTRUFDPDH4AUG6EP3OR5U3GGFPVGTCY2XJB3WOEO7TQC
-- side effects: Nodes, Root
end