old_contents: var Connections = require('./connections');
  
  module.exports = {
      renderer: null,
      socket: null,
      stage: null,
  
      init: function(socket) {
          this.socket = socket;
  
          this.renderer = new PIXI.autoDetectRenderer(800, 600, {backgroundColor: 0xAA0000});
          this.stage = new PIXI.Container();
  
          $('body').append(this.renderer.view);
      },
  
      loadLevel: function(level) {
          var self = this;
  
          var width = Math.floor($('body').innerWidth() / level.tile_width) * level.tile_width;
          var height = Math.floor($('body').innerHeight() / level.tile_height) * level.tile_height;
  
          this.renderer.autoResize = true;
          this.renderer.resize(width, height);
  
          PIXI.loader.add('background', level.background).load(function (loader, resources) {
              var background = new PIXI.extras.TilingSprite(resources.background.texture, self.renderer.width, self.renderer.height);
  
              self.stage.addChild(background);
          });
  
          PIXI.loader.on('complete', function() {
              self.renderer.render(self.stage);
          });
      }
  };
  
new_contents: var Connections = require('./connections');
  
  module.exports = {
      renderer: null,
      socket: null,
      stage: null,
  
      init: function(socket) {
          this.socket = socket;
  
          this.renderer = new PIXI.autoDetectRenderer(800, 600);
          this.stage = new PIXI.Container();
  
          $('body').append(this.renderer.view);
      },
  
      loadLevel: function(level) {
          var self = this;
  
          var width = Math.floor($('body').innerWidth() / level.tile_width) * level.tile_width;
          var height = Math.floor($('body').innerHeight() / level.tile_height) * level.tile_height;
  
          this.renderer.autoResize = true;
          this.renderer.resize(width, height);
  
          PIXI.loader.add('background', level.background).load(function (loader, resources) {
              var background = new PIXI.extras.TilingSprite(resources.background.texture, self.renderer.width, self.renderer.height);
  
              self.stage.addChild(background);
          });
  
          PIXI.loader.on('complete', function() {
              self.renderer.render(self.stage);
          });
      }
  };
  
subject: Remove background color.