Tortoise HG Executable Icon Size
Created originally on Bitbucket by Anonymous
The icon embedded into the executable files is only 32x32.
On Windows 7 the icon looks pixelated and is notably smaller than the icons for other programs that have taken advantage of larger icon sizes. Overall, it's a bit of an eye sore compared to my other development tools.
Windows 7 allows for icons to be 256 pixels wide, which means that there can be a lot of detail. Even if you were simply to crop the turtle in the banner of http://tortoisehg.bitbucket.org/about.html and make it into a icon it would be a large and welcome improvement.
There's an extensive guide on developing Windows icons at http://msdn.microsoft.com/en-us/library/windows/desktop/aa511280.aspx