function onGLC(glc) {

    glc.loop();

//     glc.size(400, 400);

//     glc.setDuration(5);

//     glc.setFPS(20);

//     glc.setMode('single');

//     glc.setEasing(false);

    var list = glc.renderList,

        width = glc.w,

        height = glc.h,

        color = glc.color;

    // your code goes here:

/*    list.addCircle({

        x:width/2,

        y:height/2,

        radius:[100, 150],

        fillStyle: ["green", "yellow"],

        stroke: true,

        strokeStyle: ["yellow", "red"],

        lineWidth: [12, 20]

    });*/

    list.addRect({

        x:width/,

        y:height/,

        w: [,],

        h: [,],

        fillStyle: ["rgba(120,5,140,0.8)", "#564121"],

        stroke: [false,true],

          lineWidth:

    });

    list.addText({

        text: ["world", "Hello"]

    });

    list.addPath({

        path: [

            [,, ,, ,, ,],

            [,, ,, ,, ,],

        ]

    });

}

function onGLC(glc) {

    glc.loop();

//     glc.size(400, 400);

//     glc.setDuration(5);

//     glc.setFPS(20);

//     glc.setMode('single');

//     glc.setEasing(false);

    var list = glc.renderList,

        width = glc.w,

        height = glc.h,

        color = glc.color;

    // your code goes here:

    list.addPoly({

        x:width/,

        y:height/,

        radius: ,

        sides: ,

        fillStyle: ["red","green", "blue"]

    })

}