var radius = 250;
var r = radius / 10 - radius / 50;
var settings = {
    size : [800, 800],
    x : 400,
    y : 250,
    radius : radius,
    r : r,
    colors : {
        background: {
            stroke: '#000000',
            bg: '#BFFCBF'
        },
        board: {
            stroke: '#0f0f0f',
            bg: '#1f1f1f',
        },
        slot: {
            stroke: '#101010',
            bg: '#6F6FE0',
        },
        piece_0: {
            stroke: '#101010',
            bg: '#FFFFFF',
            selected: '#ffa500'
        },
        piece_1: {
            stroke: '#101010',
            bg: '#000000',
            selected: '#3dff0c'
        }
    }
};