double-hit-balls/assets/lines.json

{
    "lines": [
        {"start": [-500, -500], "end": [500, -500], "color": [0.3, 0.3, 0.0]},
        {"start": [500, -500], "end": [500, 500], "color": [0.0, 0.3, 0.15]},
        {"start": [500, 500], "end": [-500, -500], "color": [0.25, 0, 0.4]}
    ]
}