afritzse - are you sure you had those settings activated in the release version of Pleco and not in the beta? (two different apps as far as the OS is concerned)
For the (X), we actually have a lighter image for that that we use in Night Mode - have you adjusted the night mode toolbar color to something other than the default?
golden chyld - also strange; again, any chance this was moving over from the beta? (I know you didn't have the latest one but perhaps you were using 3.0 beta before this)
Beijingmac - what do you mean? You just press the back button to return to the main dictionary screen - if you're trying to get back to it more rapidly from several layers deep, turn on "sidebar button everywhere" in Settings / Miscellaneous and you can tap-hold on the sidebar button to jump to a new search from anywhere.
dcarpent - yeah, we were actually trying to find a compromise there so by default we sort Starting by pinyin and Containing by frequency, and Containing by default also includes Starting (rather than only covering characters located later in the word). So we think we cover pretty much everybody that way without even needing a settings change.