tree;

drop /\s+/;

token background;
token comma /,/;
token gt />/;
token height;
token lcurly /\{/;
token lt /</;
token options;
token rcurly /\}/;
token scene;
token width;

token uint /\d+/;
token number /-?\d+(\.\d+)?/;

Start -> RenderParams Scene;

Background -> background Vector;

Height -> height uint;

Number -> uint;
Number -> number;

RenderParams -> ;
RenderParams -> RenderParam RenderParams;

RenderParam -> Background;
RenderParam -> Height;
RenderParam -> Width;

Scene -> scene lcurly SceneItems rcurly;

SceneItems -> ;

Vector -> lt Number comma Number comma Number gt;
Vector -> lt Number comma Number comma Number comma Number gt;

Width -> width uint;