DOTS: Open notepad.exe and paste this into it, then save it as gruvbox.reg, then, open the registry editor, then select Import Registry File, and select it. Then, log out, and it should work:

[HKEY_CURRENT_USER\Control Panel\Colors]
"ActiveTitle"="40 40 40"
"Background"="28 28 28"
"ButtonAlternateFace"="83 75 61"
"ButtonDkShadow"="24 20 20"
"ButtonFace"="60 56 54"
"ButtonHilight"="235 219 178"
"ButtonLight"="146 131 116"
"ButtonShadow"="50 48 47"
"ButtonText"="251 241 199"
"GradientActiveTitle"="124 111 100"
"GradientInactiveTitle"="60 56 54"
"GrayText"="146 131 116"
"Hilight"="214 93 14"
"HilightText"="251 241 199"
"HotTrackingColor"="131 165 152"
"InactiveTitle"="50 48 47"
"InactiveTitleText"="146 131 116"
"InfoText"="251 241 199"
"InfoWindow"="60 56 54"
"Menu"="40 40 40"
"MenuBar"="40 40 40"
"MenuHilight"="214 93 14"
"MenuText"="251 241 199"
"Scrollbar"="40 40 40"
"TitleText"="251 241 199"
"Window"="40 40 40"
"WindowFrame"="24 20 20"
"WindowText"="251 241 199"

[HKEY_CURRENT_USER\Control Panel\Desktop\Colors]
"Window"="40 40 40"
"WindowText"="251 241 199"
"Background"="28 28 28"
"Menu"="40 40 40"
"MenuText"="251 241 199"

[HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics]
"CaptionHeight"="-330"
"CaptionWidth"="-330"
"MenuHeight"="-285"
"MenuWidth"="-285"
"ScrollHeight"="-225"
"ScrollWidth"="-225"
"SmCaptionHeight"="-225"
"SmCaptionWidth"="-225"

[HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM]
"ColorPrevalence"=dword:00000001
"AccentColor"=dword:FF665C54  ; Gruvbox Red-ish (little endian: BBGGRRAA)
"AccentColorInactive"=dword:FF3C3836
"EnableWindowColorization"=dword:00000001