better way to prevent PROT in fusion
Redo sandcolor to use alpha, so that when powders transition they don't stay the same color

Also make color change less sharply over time
fix bug where STKM can be killed from HSWC when turned off
fix flood fill. This was a mistype, and the original check I had doesn't work all the time anyway (so just remove it)
insulators block ambient heat (when there are a lot nearby)
fix element buttons not changing color when using tpt.el.color, remove 4 char restriction on element names with tpt.el.name