alpha setting fixed on pixi renderer
alpha setting fixed on pixi renderer

griever989/PhysicsJS,pietro909/PhysicsJS,eric-seekas/PhysicsJS,Rawneed/PhysicsJS,Nayar/PhysicsJS,mcanthony/PhysicsJS,rohit765/PhysicsJS,jpellerin/PhysicsJS,VANITAX/PhysicsJS,mcanthony/PhysicsJS,jpellerin/PhysicsJS,rohit765/PhysicsJS,Luwdo/PhysicsJS,VANITAX/PhysicsJS,griever989/PhysicsJS,wellcaffeinated/PhysicsJS,Luwdo/PhysicsJS,haithemaraissia/PhysicsJS,eric-seekas/PhysicsJS,pietro909/PhysicsJS,wellcaffeinated/PhysicsJS,Nayar/PhysicsJS,Rawneed/PhysicsJS,haithemaraissia/PhysicsJS