How can I select custom backgrounds in mIRC?
Very easy! In all channel, query and DCC windows open the system menu (the top left little icon) eventually by typing ALT – (ALT minus). You will notice a /background/select/ dialog. Select any bitmap you like and it will be placed in the background of the window you were in. To change mIRC’s main background right-click on it and a selection dialog will open. Return to the table of contents.