Jameel did a great work designing Tabs Studio style perfectly matching Visual Studio 2010 theme:
His style requires Visual Studio 2010 Beta 2 and Tabs Studio v1.7.6. You can get this style here.
Jameel did a great work designing Tabs Studio style perfectly matching Visual Studio 2010 theme:
Tabs Studio v1.7.6 is released – added IsGroupFocused and IsGroupWithLastActiveDocument (only in VS 2010) properties for styling, fixed underscore duplication in extension introduced with new style in v1.7.2.
You can use WPF animation effects to customize Tabs Studio presentation. Tabs Studio v1.7.3 demonstrates fade effect for the yellow extension background when mouse is over it and transition effect between states for the close tab button. You can turn on these two effects in the Quick Style window:

Quick Style animate option
<EventTrigger RoutedEvent="Control.MouseEnter">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.2" Storyboard.TargetName="Border" Storyboard.TargetProperty="BorderBrush.Color" To="Gray"/>
<DoubleAnimation Duration="0:0:0.2" Storyboard.TargetName="LabelText" Storyboard.TargetProperty="Background.Opacity" To="1"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
Full sample effects definitions are available when you turn on animation and generate style in the Quick Style window. I think the most common customization for the sample effects provided will be adjustment of animation duration.
Tabs Studio v1.7.3 is released – added a Quick Style option to animate extension selection and the close tab button, improved selected tab glow in Visual Studio 2010, fixed excessive selected tab updates.
Tabs Studio v1.7.2 is released – updated tab extension style.
I’ve updated default TabExtension style to ease extension selection. When mouse is over extension it is highlighted with yellow background now, there is no more shadow for extension and there is more padding around tab extension and tab name:
Updated tab extension style
Tabs Studio v1.7.1 is released – added Visual Studio 2010 Beta 2 support, added automatic registration with SQL Server Management Studio 2005.
WPF 4.0 introduces new text rendering options. You can customize Tabs Studio text with these new options in Visual Studio 2010 Beta 2 using a style like this one:
<Style TargetType="TabsStudio:Tabs" BasedOn="{StaticResource DefaultTabsStyle}">
<Setter Property="TextOptions.TextFormattingMode" Value="Display"/>
<Setter Property="TextOptions.TextRenderingMode" Value="Aliased"/>
</Style>
Text with display aliased options

Text with display aliased options 3x zoom
Visual Studio 2010 Beta 2 was released this week. The only change I see (comparing to VS window tabs management in 2010 Beta 1) is the new Insert documents to the right of existing tabs option that allows opening tabs on the right:

Insert documents to the right option

Tabs Studio in Visual Studio 2010 Beta 2
Tabs Studio v1.7.0 public is released – no changes comparing to v1.6.5.