click:     refresh

    a:         move mouse left/right 
    b: shift + move mouse left/right 
    c: ctrl  + move mouse left/right 
    d: alt   + move mouse left/right 

    color = rgba(a, b, c, d) with mapped domain
  

  
    a: 1.5941871151314713
    b: -1.3795871302755287
    c: -1.4606697167516103
    d: 2.996337836996762