---
version: '1.1'
var1:
  description: a first variable
  regexp: "^#(?:[0-9a-f]{3}){1,2}$"
  default: "#a1a1a1"
  test:
    - "#b1b1b1"
    - "#b2b2b2"

var2:
  description: a second variable
  default:
    variable: _.var1
  test:
    - "#b2b1b1"
    - "#b3b2b2"