As usual Apple has set off a major change in the way we do business. Newspapers, Apps, Slack, everything is going to start supporting dark mode. I think the original way we tackled "custom color schemes" of the OS was too much - we allowed people to set individual colors for everything. Once again apple has simplified that to just light mode and dark mode. And that's how the rest of the industry will finally tackle custom color schemes (no choice but light or dark) and the OS will now dictate that setting automatically much like en-US, es-MX etc..