I want to see an image of raw Democratic vote increase from 2012 to 2020 for president. I want it to by % and not just vote numbers so it's not biased towards larger counties. Biggest decrease (smallest increase) should be goldest and largest dark brown with a gradient. I want it with the same color scheme as the Cook Political Report article. State level image for all votes from '16 to '20 for president as an example:
Texas saw the biggest margin swing towards Democrats from 2012 to 2020 out of any predominantly non Mormon state, narrowly beating Massachusetts. Contrary to Massachusetts, most of the percentage swing came in 2016.
It also had the second biggest raw Democrat vote percentage increase from 2012 to 2020 out of any predominantly non Mormon state. The colors was just a guideline. It's not something I require, I just want it to look similar and I like that color.