title: Awesome WM: how does radial gradient work
body: <p>Trying to make vignette-like gradient - from center of the screen to sides, from semi-transparent to black using <a href="https://awesomewm.org/doc/api/libraries/gears.color.html#create_radial_pattern" rel="nofollow noreferrer">radial pattern gradient</a>.<br>
  Having widget of size of the screen with following <code>bg</code>:</p>
  
  <pre><code>bg = 'radial:960,540,10:0,0,10:0,#ff000000:0.5,#00ff0088:1,#0000ffff'
  </code></pre>
  
  <p>cannot figure out what are the "start/stop point of the pattern" and "the radii of the start / stop circle", which is basically <code>:0,0,10:</code> section from above string.</p>