rgba / alpha support?

[sheymann]

Hi,

Do you plan to support the alpha channel? I must use https://github.com/harthur/color for alpha work.

[gka]

Yes, that was actually planned. I just started a new feature branch for this.

Here's the new API:

var col;

col = chroma.color('red').alpha(0.25);
col = chroma.rgb(255,0,0,0.25);
col = chroma.css("rgba(255,0,0,0.25)");
col = chroma.css("hsla(0,100%,50%,0.25)");

col.alpha() // returns 0.25
col.alpha(0.6)  // returns col

Feel free to try to the experimental version until I find more time to finish and test this release properly. If you find bugs, you can help me by adding comments to this ticket and adding more test cases.

[gka]

this is supported as of version 0.5.1