Some Libs and Links for UI-rewritting
https://github.com/madcyph3r/AdvancedMaterialDrawer (side menu)
https://github.com/wada811/Android-DialogFragments
https://github.com/futuresimple/android-floating-action-button (floating install or settings button in mainactivity)
https://github.com/google/material-design-icons
https://github.com/ShogoMizumoto/ZDepthShadow (looking nicely)
'nother floathing actionbutton, but disappering on scrolldown https://github.com/makovkastar/FloatingActionButton
https://github.com/lemonlabs/ExpandableButtonMenu (looking great, but donno yet how/where to use in this app)
https://github.com/kyleduo/SwitchButton (maybe preferences for debugmode and ad-enable-switch)
https://github.com/daimajia/NumberProgressBar (progress while installing)
https://github.com/john990/WaveView (easter-egg in credits screen?)
https://github.com/JorgeCastilloPrz/AndroidFillableLoaders (great for a app-logo (not yet existing))
https://github.com/Kyson/WhorlView (the dots (third in preview) look great)
https://github.com/jfeinstein10/SlidingMenu (another widely used slide-menu)
https://github.com/kobakei/Android-RateThisApp (ok old but good...)
https://github.com/PSDev/LicensesDialog
https://github.com/avast/android-styled-dialogs
https://github.com/pedant/sweet-alert-dialog (for confirming IP before installing)
https://github.com/d-max/spots-dialog (another loading dialog)
https://github.com/andraskindler/quickscroll (add scrolling with Letters like in phonebook for list of apps)
https://github.com/pchauhan/FilterSelectorListView (maybe combine this too, pin app-icon on top of selected apps while scrolling through list)
https://developer.android.com/reference/android/support/design/widget/Snackbar.html (better than toasts?)
https://github.com/JohnPersano/SuperToasts (donno how/where in this app i could use them good)
https://github.com/SimonVT/MessageBar (more toast-message-bar even)
https://github.com/code-mc/loadtoast
https://github.com/JoanZapata/android-iconify (lot of icons)
https://github.com/PomepuyN/discreet-app-rate (my favorite, non annoying rating offer)
https://github.com/sd6352051/NiftyNotification (test em)
https://github.com/frakbot/GlowPadBackport (maybe for another app)
https://github.com/spacecowboy/NoNonsense-FilePicker (pick custom apk for sideloading on fire tv)
https://github.com/fredericojssilva/ShowTipsView (new user guide)
https://github.com/antonkrasov/AndroidSocialNetworks#license (social network integration - good but maybe for another app)
https://github.com/jeromevdl/android-holo-colors-idea-plugin
http://androidannotations.org/ - https://github.com/excilys/androidannotations
https://github.com/infinum/android_dbinspector (if using db in apps for quick debugging)
https://github.com/d-tarasov/android-intents https://github.com/google/liquidfun https://github.com/percolate/caffeine
https://github.com/SufficientlySecure/donations (for donating through google play store)
https://github.com/jgilfelt/NotificationLog (for debugging log for beta releases)
https://github.com/Manabu-GT/ExpandableTextView (i like this, maybe use in progress window while installing)
https://github.com/RomainPiel/Shimmer-android (onLoad animation?)