For some reasons,I have a 16:10(2880*1800) screen laptop,when I want to and use a skin,I founded that my skins don't fit in a 16:10 resolution ratio,even some skin both 16:9 and16:10.I tried to use photoshop to cut it to 16:10 but it goes wrong,how can I do to get my skins fit to the 16:10 screen?
#helps

The only way to readjust a skin to another aspect ratio, is to manually adjust the files in some image editing software. Which, without the source files with access to all the layers, is going to be a VERY tedious job.