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August 29, 2015 14:17
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Convert Hex color to RGBA
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| def hex_to_rgba(input, alpha=1) | |
| components = (input.match /#?([0-9A-F]{2})/ )[1..3] | |
| components.map!{ |x| x + x } if input.size == 4 | |
| "rgba(#{components.collect(&:hex).join(',')},#{alpha})" | |
| end |
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