I intend to build a custom version of SCRATCH. I am a web-developer and hence not familiar with technologies that could have used to build scratch.
I see quite a lot technologies used in there such as Java Applets, C, SmallTalk and so on.
Can someone tell me the basic skill-set that's required to modify SCRATCH fro my purpose?
Squeak is not a programming language. Looks like I need to know SmallTalk if I want to make changes and for more drastic changes I need to write C code.