Sprites uses path relative to the grunt root rather than to the CSS output.

[LaurentGoderre]

For flexibility, the background: url() should be relative to the CSS file not the grunt root.

For example:

sprites:{
    all:{
        src: ["src/plugins/sprites/**/*.png"],
    css: "src/base/partials/_sprites.scss",
    map: "src/base/partials/sprites/sprites.png"
    }
}

Results in

%_sprites_scss {
    background: url("../src/base/partials/sprites/sprites.png") no-repeat;
 }

Instead of

%_sprites_scss {
    background: url("sprites/sprites.png") no-repeat;
 }

[LaurentGoderre]

Let me know when it gets published to npm

[alpadev]

Just tried to npm ERR! publish Error uploading package npm ERR! Error: forbidden user: alpadev not authorized to modify grunt-imagine

Looks like you have to wait for @asciidisco but the release is already packed :)

[LaurentGoderre]

No rush :)