\s{2}any whitespace character, repeated exactly 2 times
\d{2}a digit, repeated exactly 2 times
\:the literal : (5810 / 728 / 3A16)
\d{2}a digit, repeated exactly 2 times
\:the literal : (5810 / 728 / 3A16)
\d{2}a digit, repeated exactly 2 times
\sany whitespace character
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string