I had to read the question twice. Dreamweaver was the go-to in 2010 ? I think it was already well on its decline by then. At a new job in 2003 one of my first tasks was to generate new “heat map” code since the company was updating the background image file for 50-state map interfaces. Dreamweaver had the best interface for doing that work, so I got a copy and spent a couple days carefully tracing the 50 state outlin…
Funny story, I'm a SWE and my wife used to work as a marketing manager. Her boss wanted her to make something similar, a heat map over a U.S. map. Except he wanted it to work in Excel. She asked me about it and I told her I could code something like that, but no way inside Excel... Sure enough, she hacked on it for a while and was able to actually build a functioning heat map in Excel. I have no idea how it works. I'…
They did it by embedding an Adobe Flash object in one cell of an Excel file, which self-executed when the Excel file was opened. Desktop Excel is insane.