I use a .mat like this for the leaf texture in Dexsofts Palms pack:
texture0="abstract::Diffuse.dds"
texture1="abstract::Normal.dds"
texture2="abstract::Specular.dds"
specular=0.25
cullface=0
shader="abstract::mesh_diffuse_bumpmap_sway.vert", "abstract::mesh_diffuse_bumpmap_specular_alphatest.frag"
shadowshader="abstract::mesh_shadow_sway.vert","abstract::mesh_shadow.frag"