Back in 2007, we started the development of a Flex application whose main characteristics are: it is an administration tool, no animation here it is basically a set of list screens with corresponding add/update screens each of these add/update screens use different tabs with usual data oriented components on each tab, such as datafield, radio button, dropdown list... Now that Flash will officially die in 2020, it is time for us to migrate this application from the current code base which is: Flex 3 for Flash and ActionScript (a lot!) on the client Java objects on the server accessed from the client using Flex remote objects I have the following requirements for this migration: use a technology which runs on a browser or as an app on PC, Mac and tablets, and maybe smartphones (not mandatory as this app is an admin tool not to be used on the go) deliver modern UI (flat design expected) and the most important: which offers the lowest migration cost and delay, as we have a huge Flex3 MXML and AS3 code base to migrate Please tell me: Is targeting AIR a viable solution for this migration? What are the difficulties we may face during this migration? Where can we find documentation to help on such a migration? What resources (themes, skins, other) are available to give an AIR app a nice and modern flat design? Default theme really look outdated. Any other point you may consider of interest in this context
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