Sadly, you are in the minority. Look at this [0]. This is why no one needed a baked in "dark mode" for Windows 98. There is no equivalent dialog in modern Windows. It's ridiculous how much computer interfaces have regressed in recent decades.
> This is why no one needed a baked in "dark mode" for Windows 98.
Nevertheless there was and it looked really crazy.
> There is no equivalent dialog in modern Windows
The last version of Windows I used was Windows 7 and I'm pretty sure it was there. I was coding WinForms apps and it uses native system widgets stylable via these settings. Now I use Qt to develop cross-platform apps (on KDE5 as the primary environment), it follows the principle in almost every aspect (it doesn't let you change the colors easily however, you need to design a custom theme for this), it also suggest attaching a keyboard shortcut to every action and displays these right to the menu items.
> Nevertheless there was and it looked really crazy.
You're talking about the high-contrast theme. It wasn't anything special, it was just a specific set of settings from this dialog. Compare that to now, when having a dark mode took so much work Microsoft made a special announcement and everything. Ridiculous.
> The last version of Windows I used was Windows 7 and I'm pretty sure it was there.
It's been a while since 7, but if this dialog was there it was because you could still disable compositing and use the old fashioned Win32. The closest thing in 10 lets you change your titlebar color and background.
[0] https://tinyurl.com/yco7jz92