I love this Techtree! I played with it some time ago and want to start a new playthrough on 1.9. I tried using the 1.8 version of ETT but sadly it didn't work so i wanted to ask if you know when or if there will be a 1.9 release (with 1.10 already being out). I hope i didn't miss any info and defintly don't want to stress you, i can only imagine how much work this must be.
On your Ideas from earlier:
I think if you are able to color code different branches with the icons that would be helpful. I am with markinturamb on the simplicity of the icons and would say keep them stock(-ish) and well maybe change the color. If you are able to change the Node color itself it could be nice to seperate aircraft and rocketry with that. i.e.: Jet Engines are Black bg with green icon, Wings are Black bg with yellow icon, SRBs are white bg with red icon and Liquid engines white bg with blue icon and so on.
And bigger nodes for bigger parts is maybe an idea but i would vary the sizes to much.
I hope everything is sort of understandable, i am not a native speaker and rarely ever post in forums, so sorry for the textlayout and languagemistakes i guess^^
looking forward to grind through the ETT once again!