Q:

Sprites in LESSC

Is there an addon to LESSC that would allow me to to do something like:
LESS
.icon-xyz{ .sprite('image1.png'); }
.icon-abc{ .sprite('image2.png'); }

that outputs a merged sprite in production mode, and stays with the individual images in development mode?
Similar to how Compass works with SASS

A:

There is some addon for node.js: less-sprites. https://github.com/polycode/less-sprites
It requires install  ImageMagick firstly.

