void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
    vec2 uv = fragCoord.xy / iResolution.xy;

    float fauxBass = 0.5 + 0.5 * sin(iTime * 2.5);
    fauxBass *= 0.6 + 0.4 * sin(iTime * 0.7);

    vec2 p = uv * 2.0 - 1.0;
    p.x *= iResolution.x / iResolution.y;

    uv += sin(uv.yx * 8.0 + iTime * 2.0) * fauxBass * 0.05;

    float d = length(p);
    float glow = 0.025 / max(d, 0.025);

    vec3 color = vec3(uv.x, uv.y, 1.0);
    color += vec3(0.1, 0.6, 1.0) * glow * fauxBass;

    fragColor = vec4(color, 1.0);
}