I've been trying to make a phylogenetic tree (an evolutionary diagram that uses "branches" to explain how species are related) of most major life on earth and it's getting very large. I'd prefer to make it a digital document so I don't have to waste so much paper and in case I get a branch wrong I don't have to erase everything. Also I feel the final product would look much nicer on a computer if I can color-code it and include images, and if I do it on paper it would take longer and I'd have to make multiple trees.
I've searched high and low and I'm convinced there's no program used by the scientific community like this because when they make their own phylogenetic trees to publish, they use alignment tools to tell how related different genetic sequences are and the tool assembles the tree for them. I just want a program that lets me make a simple tree where I can add or delete branches wherever I want, then maybe customize how it looks so it's pretty.
I have some coding experience with C++, but I'm not willing to put in a ton of time to understanding new coding techniques, so if there's anything that requires light coding that would work.