skin / screen ->
Manual (http://docs.locusmap.eu/doku.php?id=manual:advanced:customization:screens)
QuoteMethod of creating custom screens requires at least essential knowledge of developing Android and XML files system. Otherwise we recommend to use already created skins. To edit them, use just simple NotePad or any text editing software with XML syntax highlight (for example Notepad++)
dashboard & editor ->
Manual (http://docs.locusmap.eu/doku.php?id=manual:user_guide:tools:dashboards)
QuoteFor most people who want to create their own screens should be enough using much simpler dashboard system that offers similar functionality in much less painful way.
However, Dashboard is available only for Pro version and misses some advanced possibilities like rotating images, completely free layout etc.