I thought it would be fun and nice to brand start screen with the colors of our company's logo by customizing the color scheme of the start screen.
Windows 8 Start screen:

First I found the tool decor8 mentioned here, but it costs money and that's not an option. Then I found this solution here on the site. But when I read the comments about if its safe I began thinking it would be safer to do it by yourself and not with a third party tool.
