message: Fixes alpha blending for recent layer
  The pixel blending function was not properly set for the `hoverNodes`
  layer. It is now set for all WebGL layers directly.
diff: @@ -185,15 +185,12 @@ export default class Sigma extends EventEmitter {
  this.createCanvasContext("mouse");
  // Blending
  - let gl = this.webGLContexts.nodes;
  -
  - gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
  - gl.enable(gl.BLEND);
  -
  - gl = this.webGLContexts.edges;
  + for (const key in this.webGLContexts) {
  + const gl = this.webGLContexts[key];
  gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
  gl.enable(gl.BLEND);
  + }
  // Loading programs
  for (const type in this.settings.nodeProgramClasses) {
  