Barva 1.3, truecolor, level detection, and proper types

I just released version 1.3 of&#xA; &#xA;&#xA; &#xA;&#x9;&#x9; barva &#xA;&#x9; &#xA; &#xA;, my tiny tagged-template&#xA;terminal colour npm library. It&rsquo;s still zero-dependency and tree-shakable,&#xA;but I&rsquo;ve given it a lot more to do out of the box.