Lines rendered at absurd size with example Immediate-Mode Drawing script

My code currently looks like:

using System.Collections;using System.Collections.Generic;using UnityEngine;using Shapes;
[ExecuteAlways] public class MissileShapes : ImmediateModeShapeDrawer {
    public override void DrawShapes( Camera cam ){
        using( Draw.Command( cam ) ){
            // set up static parameters. these are used for all following Draw.Line calls            Draw.LineGeometry = LineGeometry.Volumetric3D;            Draw.ThicknessSpace = ThicknessSpace.Pixels;            Draw.Thickness = 1; // 4px wide
            // set static parameter to draw in the local space of this object            Draw.Matrix = transform.localToWorldMatrix;
            // draw lines            Draw.Line( Vector3.zero, Vector3.right,   Color.red   );            Draw.Line( Vector3.zero, Vector3.up,      Color.green );            Draw.Line( Vector3.zero, Vector3.forward, Color.blue  );        }
    }
}

and for some reason the lines rendered are strangly large and scale depending on camera distance to the lines.

Project files:

https://storage.buymymojo.net/s/cRsGCnLCbxRfTac