Styling on search control is not inherited from the website skin/style sheet, so each time I install an upgrade of Smith Cart I have to redo the styling.
Are you referring to the search control on the product list page? If so there is a class tag (class="NormalText") that can be styled in the module.css file. You want to remove that class in future versions?
Yes - we've made changes to your styke sheet to get it looking like our site. Each time I do an upgrade we have to redo those changes. Workaround is for us to make a backup before we install an upgrade.
I removed the class on the search controls, the next build released will not have that class.