I've noticed a continuing trend to make DesktopX themes for a variety of resolutions.
I understand the inclination to do this, it appears easier to just switch resolution, move some objects and resave.
However, it is in fact a poor long term strategy if you intend to improve and update your theme. Think about it - every time you tweak the theme you need to do it several times, at each resolution!
DesktopX provides functionality to allow to to scale objects relative to the screen size and position relative to screen edges.
DX also allows you to reposition objects on resolution change.
It's easy to do, check out Blue Ice(https://www.wincustomize.com/skins.asp?SkinID=1709&library=3) as an example of how to achieve the effect looking particularly at the bars and menus down the side.
Additional Blue Ice modules can be found here https://www.wincustomize.com/skins.asp?AuthorID=325