ui.newLabel is in the ui.lua library which is a library of basic ui functions that comes bundled with some of the Corona SDK sample applications. Just look at some of the directories for the sample projects in your Corona SDK install and you should find a ui.lua file.
Ansca does a good job of commenting the file which serves as the “documentation” for ui.lua.
If you want more background, the Enhance UI library by Pixelvision which cobbles together some extra features for ui.lua has some nice history/background on the ui.lua library (and may be the best explanation/clarification on the matter).
Here’s the link to the Enhanced UI Library:
http://developer.anscamobile.com/code/enhanced-ui-library-uilua
There’s also a coronaui library that is available to subscribers only as well as some other related libraries such as scrollview and tableview that augment the ui.lua library (again you’ll be able to locate some sample projects that use the latter two). [import]uid: 25988 topic_id: 11105 reply_id: 40384[/import]