Classic Shell: Forum

Why can the button size only be set for custom images.. isn't it applicable for the default button to?, like say they wanted vista style (where the start button is a few pixels larger than the taskbar)

The built-in button has different sizes that are designed for specific DPI settings. They may not look their best at arbitrary sizes. If you really want to use a custom size you can extract the image and include it as a custom button.

They MAY not, but isn't that something the user would judge for themselves, You could always set it to use the highest resolution version if any custom size is specified..., but i don't think the option should be completely disabled because it doesn't look 100% optimal..