fontawesome:

https://fontawesome.com/v6.0/

sgv background:

https://www.svgbackgrounds.com/

css:

background-color: #FFD4C3; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 900'%3E%3Cpolygon fill='%23e84100' points='957 450 539 900 1396 900'/%3E%3Cpolygon fill='%23e66100' points='957 450 872.9 900 1396 900'/%3E%3Cpolygon fill='%23df351a' points='-60 900 398 662 816 900'/%3E%3Cpolygon fill='%23e67a0f' points='337 900 398 662 816 900'/%3E%3Cpolygon fill='%23c8283f' points='1203 546 1552 900 876 900'/%3E%3Cpolygon fill='%23f74111' points='1203 546 1552 900 1162 900'/%3E%3Cpolygon fill='%23c23260' points='641 695 886 900 367 900'/%3E%3Cpolygon fill='%23f75119' points='587 900 641 695 886 900'/%3E%3Cpolygon fill='%23c1377c' points='1710 900 1401 632 1096 900'/%3E%3Cpolygon fill='%23ae4560' points='1710 900 1401 632 1365 900'/%3E%3Cpolygon fill='%23c7438e' points='1210 900 971 687 725 900'/%3E%3Cpolygon fill='%23ed7f3b' points='943 900 1210 900 971 687'/%3E%3C/svg%3E"); background-attachment: fixed; background-size: cover;