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Dark Theme for Windows

config/tweaks.json
2172  "WPFToggleDarkMode": {
2173    "Content": "Dark Theme for Windows",
2174    "Description": "Enable/Disable Dark Mode.",
2175    "category": "Customize Preferences",
2176    "panel": "2",
2177    "Type": "Toggle",
2178    "registry": [
2179      {
2180        "Path": "HKCU:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize",
2181        "Name": "AppsUseLightTheme",
2182        "Value": "0",
2183        "Type": "DWord",
2184        "OriginalValue": "1",
2185        "DefaultState": "false"
2186      },
2187      {
2188        "Path": "HKCU:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize",
2189        "Name": "SystemUsesLightTheme",
2190        "Value": "0",
2191        "Type": "DWord",
2192        "OriginalValue": "1",
2193        "DefaultState": "false"
2194      }
2195    ],
2196    "InvokeScript": [
2197      "
2198      Invoke-WinUtilExplorerUpdate
2199      if ($sync.ThemeButton.Content -eq [char]0xF08C) {
2200        Invoke-WinutilThemeChange -theme \"Auto\"
2201      }
2202      "
2203    ],
2204    "UndoScript": [
2205      "
2206      Invoke-WinUtilExplorerUpdate
2207      if ($sync.ThemeButton.Content -eq [char]0xF08C) {
2208        Invoke-WinutilThemeChange -theme \"Auto\"
2209      }
2210      "
2211    ],

Registry Changes

Applications and System Components store and retrieve configuration data to modify Windows settings, so we can use the registry to change many settings in one place.

You can find information about the registry on Wikipedia and Microsoft’s Website.