message: Enhancing node frag shader a bit
diff: @@ -4,12 +4,12 @@ varying vec4 color;
  varying vec2 center;
  varying float radius;
  +const vec4 color0 = vec4(0.0, 0.0, 0.0, 0.0);
  +const float border_size = 0.8;
  +
  void main(void) {
  - float border_size = 0.8;
  - vec4 color0 = vec4(0.0, 0.0, 0.0, 0.0);
  + float dist = length(gl_FragCoord.xy - center);
  - vec2 m = gl_FragCoord.xy - center;
  - float dist = sqrt(m.x * m.x + m.y * m.y);
  float t = smoothstep(
  radius + border_size,
  radius - border_size,
  