Star
radial-gradient(rgba(51,51,51,0) 67.5%, rgba(220,220,255,1) 97.5%);
With background-color: rgb(51,51,51), background-position: -100px -100px and background-size: 200px 200px
Circles
radial-gradient(rgba(51,51,51,0) 47.5%, rgba(220,220,255,1) 97.5%);
With background-color: rgb(51,51,51), background-position: -100px -100px and background-size: 100px 100px
Corners
radial-gradient(50%, rgba(51,51,51,0) 37.5%, rgba(220,220,255,1) 57.5%, rgba(51,51,51,0) 77.5%)
With background-color: rgb(51,51,51), background-position: -100px -100px and background-size: 200px 200px
Trumpet 1
radial-gradient(-100%, rgba(51,51,51,0) 67.5%, rgba(220,220,255,1) 97.5%)
With background-color: rgb(51,51,51), background-position: -100px -100px and background-size: 200px 200px
Trumpet 2
radial-gradient(200%, rgba(51,51,51,0) 67.5%, rgba(220,220,255,1) 97.5%)
With background-color: rgb(51,51,51), background-position: -100px -100px and background-size: 200px 200px
Horseshoe 1
radial-gradient(-100%, rgba(51,51,51,0) 67.5%, rgba(220,220,255,1) 97.5%)
With background-color: rgb(51,51,51) and background-size: 200px 200px
Horseshoe 2
radial-gradient(200%, rgba(51,51,51,0) 67.5%, rgba(220,220,255,1) 97.5%)
With background-color: rgb(51,51,51) and background-size: 200px 200px
Combination trumpet 1 and horseshoe 1
Combination trumpet 2 and horseshoe 2