We're experiencing a hiccup with the current version of the modules, hence the cuteness application is unavailable right now.
We are working on having it fixed as soon as possible (the BETA release, expected in two weeks the latest).
Please, bear with us some more.
As per the different resolution image recommendations - supporting different dpi images is one of the major functionalities a NativeScript project (and, respectively, the tooling) must have. Unfortunately, we still haven't had the chance to start working on it.
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