How can I left align title-bar text in Windows 8?

WindowBlinds 8 by Stardock can do it.

Just select or design a theme that left aligns the text.

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To flesh this out a bit more:

When you purchase a copy of WindowBlinds 8, you get the program SkinStudio bundled with it for free.
SkinStudio is a graphical user interface that allows you to customize or design a theme. You can base your theme off of an existing theme, including Windows 8's built-in/default theme, and then change specific things about it, including, quite relevantly, the alignment on the window title text.
You'll have to be a little patient and learn how SkinStudio works, but it shouldn't be that hard to do this.

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