This is probably a dumb question and so I'm embarrassed to ask, but does adding themes affect battery life even though you aren't currently using them, i.e. if I just installed them thru Cydia but don't have them checked thru Winterboard. Will just allowing them to remain on my phone drain the battery even if they aren't being used? I have 4 or 5 themes that seem kind of large, like Pages, Obsidian and Existenz, but I only use maybe one feature of each. Sorry to ramble!