I'm not quite sure what you're asking. Are you asking to hide wyUpdate when it's updating? Or are you asking how to change the theme (that is, the configurable images) of wyUpdate?
Is it possible to hide or disable showing the theme while updating because I do not want to show customer the theme of updating?
I'm not quite sure what you're asking. Are you asking to hide wyUpdate when it's updating? Or are you asking how to change the theme (that is, the configurable images) of wyUpdate?
See the FAQ answer to How can I completely hide the updater (wyUpdate)?.