text: import {
      convolution
  } from '../util'
  
  export default function transparency () {
      return convolution([
          1, 0, 0, 0, 0,
          0, 1, 0, 0, 0,
          0, 0, 1, 0, 0,
          0, 0, 0, 0.3, 0,
          0, 0, 0, 0, 1,
      ]);
  }