[Windows Phone 7 Development and Hacking] poloche:
Ok i have edited the line registry ...

Mobile Operator

:

LineOne = "Mobile Operator", LineTwo = "Change Mobile Operator", Path = @"HKLM\System\Platform\DeviceTargetingInfo", Name = "MobileOperator", Value = "", DataType = "string"

OEM Name

:

LineOne = "OEM Name", LineTwo = "Change OEM Name", Path = @"HKLM\System\Platform\DeviceTargetingInfo", Name = "OemName", Value = "", DataType = "string"

Background Color Theme Dark (1)

:

LineOne = "Background Color-key1 (Dark)", LineTwo = "Change BaseThemeColor", Path = @"HKLM\ControlPanel\Themes\1", Name = "BaseThemeColor", Value = "", DataType = "string"

LineOne = "Background Color-key2 (Dark)", LineTwo = "Change PageBackgroundColor", Path = @"HKLM\ControlPanel\Themes\1", Name = "PageBackgroundColor", Value = "", DataType = "string"

LineOne = "Background Color-key3 (Dark)", LineTwo = "Change SysTrayBackgroundColor", Path = @"HKLM\ControlPanel\Themes\1", Name = "SysTrayBackgroundColor", Value = "", DataType = "string"

LineOne = "Background Color-key4 (Dark)", LineTwo = "Change TextHighContrast", Path = @"HKLM\ControlPanel\Themes\1", Name = "TextHighContrast", Value = "", DataType = "string"

LineOne = "Background Color-key5 (Dark)", LineTwo = "Change TextBackGround", Path = @"HKLM\ControlPanel\Themes\1", Name = "TextBackGround", Value = "", DataType = "string"

Text Color Theme Dark (1)

:

LineOne = "Text Color-key1 (Dark)", LineTwo = "Change ContrastColor", Path = @"HKLM\ControlPanel\Themes\1", Name = "ContrastColor", Value = "", DataType = "string"

LineOne = "Text Color-key2 (Dark)", LineTwo = "Change ListPickerBackgroundPressed", Path = @"HKLM\ControlPanel\Themes\1", Name = "ListPickerBackgroundPressed", Value = "", DataType = "string"

LineOne = "Text Color-key3 (Dark)", LineTwo = "Change TextNeutralColor", Path = @"HKLM\ControlPanel\Themes\1", Name = "TextNeutralColor", Value = "", DataType = "string"

Background Color Theme Light (0)

:

LineOne = "Background Color-key1 (Light)", LineTwo = "Change BaseThemeColor", Path = @"HKLM\ControlPanel\Themes\0", Name = "BaseThemeColor", Value = "", DataType = "string"

LineOne = "Background Color-key2 (Light)", LineTwo = "Change PageBackgroundColor", Path = @"HKLM\ControlPanel\Themes\0", Name = "PageBackgroundColor", Value = "", DataType = "string"

LineOne = "Background Color-key3 (Light)", LineTwo = "Change SysTrayBackgroundColor", Path = @"HKLM\ControlPanel\Themes\0", Name = "SysTrayBackgroundColor", Value = "", DataType = "string"

LineOne = "Background Color-key4 (Light)", LineTwo = "Change TextHighContrast", Path = @"HKLM\ControlPanel\Themes\0", Name = "TextHighContrast", Value = "", DataType = "string"

LineOne = "Background Color-key5 (Light)", LineTwo = "Change TextBackGround", Path = @"HKLM\ControlPanel\Themes\0", Name = "TextBackGround", Value = "", DataType = "string"

Text Color Theme Light (0)

:

LineOne = "Text Color-key1 (Light)", LineTwo = "Change ContrastColor", Path = @"HKLM\ControlPanel\Themes\0", Name = "ContrastColor", Value = "", DataType = "string"

LineOne = "Text Color-key2 (Light)", LineTwo = "Change ListPickerBackgroundPressed", Path = @"HKLM\ControlPanel\Themes\0", Name = "ListPickerBackgroundPressed", Value = "", DataType = "string"

LineOne = "Text Color-key3 (Light)", LineTwo = "Change TextNeutralColor", Path = @"HKLM\ControlPanel\Themes\0", Name = "TextNeutralColor", Value = "", DataType = "string"

It's OK ? :D