You can download SkinStudio here..https://www.stardock.com/products/skinstudio/downloads.asp
After you have it downloaded open the program and click on "Tools" mouse on "WindowBlinds" and it will open a new menu. Click on "Open current skin". Make sure you do have the skin you would like to work on open at the time.When it come up you will see the skin. In the middle where you see the picture of the WB, to the left of that there will be sections you can chose from. Click on "XP Taskbar". When you are there click on the "Log Off" area. To the very left the will be a window open that has all the part of the skin listed. It will open the start panel area. Click on "Log Off Buttons" and uncheck "Translucency" in the area just under the pic. in the middle to the right. Save it. Do this by going up to the left top where it says "File, Edit, View" and such. Just under the "Windows" selection there is a icon for saving the WB.Directly under the "dow" of "Window". When it asks to save say yes.
Hope this works for you.