How can I set the background color of dialog boxes?

[MarkFilipak.Windows]

I want to change the pale green background color of dialog boxes (also used by some applications) to a better, more harmonious light brown. The color, RGB: 238 255 238 (discovered via Paint, 'Edit colors'), is very, very close.
However, none of the colors below come close, so I obviously haven't found the right settings in the registry.
How can I set the background color of dialog boxes?


Thank you!


Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Control Panel\Colors]
"ActiveBorder"="180 180 180"
"ActiveTitle"="153 180 209"
"AppWorkspace"="171 171 171"
"Background"="0 0 0"
"ButtonAlternateFace"="0 0 0"
"ButtonDkShadow"="105 105 105"
"ButtonFace"="240 240 240"
"ButtonHilight"="255 255 255"
"ButtonLight"="227 227 227"
"ButtonShadow"="160 160 160"
"ButtonText"="0 0 0"
"GradientActiveTitle"="185 209 234"
"GradientInactiveTitle"="215 228 242"
"GrayText"="109 109 109"
"Hilight"="0 120 215"
"HilightText"="255 255 255"
"HotTrackingColor"="0 102 204"
"InactiveBorder"="244 247 252"
"InactiveTitle"="191 205 219"
"InactiveTitleText"="0 0 0"
"InfoText"="0 0 0"
"InfoWindow"="255 255 225"
"Menu"="240 240 240"
"MenuBar"="240 240 240"
"MenuHilight"="0 120 215"
"MenuText"="0 0 0"
"Scrollbar"="200 200 200"
"TitleText"="0 0 0"
"Window"="255 255 255"
"WindowFrame"="100 100 100"
"WindowText"="0 0 0"

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