effekseer/Effekseer ? reverse-engineered prompt

Build me a particle effect editor for game developers, similar to Effekseer.

I want a desktop tool where someone can create and preview animated particle effects like sparks, smoke, magic, explosions, and glows, then save them and play them back inside a game through a runtime. The editor should feel usable by a designer, not just a programmer, with a timeline or node style workflow, live preview, and easy controls for position, color, size, timing, and emission.

Please make it support the core app first, with a clean interface, sample effects, and a way to export or load projects. If you need to check current docs or implementation details online, do that. Keep it focused on game use, and make sure it runs well enough to test effects quickly on a few common graphics backends.