Say I have an options menu XML file with several items, and an alternate resource set (e.g., night mode via DayNight theme) where only ONE of those items differs. Is there a way to specify just that one item in the alternate XML file, and have it override the correct option, in order to stay DRY? Or must I repeat all the menu items including the ones that do not change?

If I'm still developing my app, but I want to generate a beta APK to email someone to test (but not for wider distribution), what is the best procedure? Generate a production key and sign with that, or is that considered a bad practice when it is not really for distribution? I previously emailed a debug APK to someone and it caused problems - the first one installed right but subsequent versions refused to install over the old one, even after it was uninstalled. I want to make sure I generate APKs correctly for this scenario in the future. I don't think BCG talks about this case.

Is there any way to determine what styles are applied to some given text on screen? Closest thing I've found is the "theme" section in the Layout Inspector. Any other options, ideally with more detail?

For 3rd party libraries like Retrof
...

        browser = result.findViewById(R.id.nosurf_webview_fragment_webview);
        WebSettings browserSettings = browser.getSettings();
        browserSettings.setDomStorageEnabled(true); // Imgur needs this
        browserSettings.setJavaScriptEnabled(true);
        browserSettings.setBuiltInZoomControls(true);
        browserSettings.setDisplayZoomControls(false);
        browserSettings.setLoadWithOverviewMode(true);
        browserSettings.setUseWideViewPort(true);
        browser.setWebViewClient(new WebViewClient() { // needed to load all user clicks inside the WebView

            @Override
            @TargetApi(21) //TODO: support down to 19
            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
                String url = request.getUrl().toString();

...