A long time ago, on Windows XP with WindowBlinds 5, I used a skin whose radio button image was 15px high. All was fine, the radio buttons were skinned exactly as in the image. Now on Windows 7 with WindowBlinds 7, the skin still mostly works, but radio buttons (and checkboxes) appear to get scaled down to 13px. Meanwhile the mouseover glow *doesn't* get scaled down, so on mouseover there is a small gap between the glow and the control.
Is there a way to get the radio buttons back to their original size, or is this simply not supported anymore? I tried creating a new skin in SkinStudio and just importing the radio button image, just in case it was something with the original skin's settings, but no dice.
Images for comparison:
WinXP/WB5:

Win7/WB7:

Detailed version information: WindowBlinds 7.2 build 297 on 64-bit Windows 7
Skin: "Black" by tehZERO (https://www.wincustomize.com/explore/windowblinds/6119/)