Merge pull request #1104 from RongqiZ/user/rongqizhou/AddGlobalThemeParam

add includeGlobalTheme for get-spotheme powershell command

Author: Ruchika-mittal01

sharepoint/sharepoint-ps/Microsoft.Online.SharePoint.PowerShell/Get-SPOTheme.md

@@ -96,7 +96,7 @@ If the theme is in legacy format, the output will be:
 To return all uploaded themes, use the [**Get-SPOTheme**](./Get-SPOTheme.md) command with no arguments.
 
 ```powershell
-Get-SPOTheme
+Get-SPOTheme -IncludeGlobalTheme
 ```
 
 ## PARAMETERS
@@ -119,6 +119,26 @@ Accept pipeline input: True (ByValue)
 Accept wildcard characters: False
 ```
 
+### -IncludeGlobalTheme
+
+> Applicable: SharePoint Online
+
+When specified, this cmdlet returns all global themes that are available to the tenant. This includes themes created using PowerShell as well as themes created in the Brand Center.
+
+For satellite geos, `IncludeGlobalTheme` also returns the global themes that are defined in the primary geo.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### CommonParameters
 
 This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](https://go.microsoft.com/fwlink/?LinkID=113216).