Added

• Core : new device.nodeJS to detect if running under node.js
• Particle Emitter: added the possibility to define a specific tint and blend mode for particles
• Renderable: new centerOn method to center a renderable around given coordinates
• Renderer: added "additive" as an alias for the "lighter" blend mode
• Renderer: listen to contextlost & contextrestored events in Canvas rendering mode (@see https://developer.chrome.com/blog/canvas2d/#context-loss)

Changed

• Core : replace internal use of global window object by globalThis
• Core : refactor the boot process, and device/feature detection/initialisation to better work within node.js (will still require jsdom and node-canvas)
• Particle Emitter: refactoring of the Emitter class to directly extend Container instead of Renderable

Fixed

• Particle Emitter: fix a regression in ParticleEmitter causing a crash, after es6 class reformatting
• Particle Emitter: fix particle additive blend mode in WebGL