<p>Pure CSS background pattern. Can you figure out how it was made before checking the code?</p>

@use 'sass:math';

$w: 4em;
$a: 60deg;
$h: $w*math.tan(90deg - .5*$a);

html {
  --s: from #{.5*$a},;
  --l: 0% #{180deg - $a}, #0000 0% 50%;
  background:
    repeating-conic-gradient(var(--s) #b65333 var(--l)), 
    repeating-conic-gradient(var(--s) #f4bb3a var(--l)) 0 $h, 
    repeating-conic-gradient(var(--s) #ed7b32 var(--l)) 0 2*$h, 
    repeating-conic-gradient(var(--s) #966459 var(--l)) 0 3*$h, 
    linear-gradient(#f19b36 25%, #824739 0 50%, #fadc9c 0 75%, #d6552b 0);
  background-size: $w 4*$h
}