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mbijon/gist:8068681

Forked from efedorenko/gist:2028193
Created December 21, 2013 12:20
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gistfile1.sass
// Turns out this function already exists in Sass: mix(fg, bg, %) (http://d.pr/mGqa)
// Alpha blending
@function blend($bg, $fg) {
$r: red($fg) * alpha($fg) + red($bg) * (1 - alpha($fg));
$g: green($fg) * alpha($fg) + green($bg) * (1 - alpha($fg));
$b: blue($fg) * alpha($fg) + blue($bg) * (1 - alpha($fg));
@return rgb($r, $g, $b);
}
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