Create svg images

[jwnigel]

We'll need svg images for different tree / shrub / plant forms. Obviously not all plants will have a unique image but a certain number of categories will. Think about the "habit" column in this EFG database:

We have to decide whether to use a minimalistic circle or an svg with a bit more detail to include a wavy outline, some branches, etc. I would like to use more than a simple circle but without adding weight to our program with complex svg's.

And some variation would be nice so that not all trees look the same. We could rotate the same design (unless it includes shadow) but it shouldn't be hard to add some variety to our options.

Another idea would be to include an icon with each tree to differentiate it. For example a chesntut tree would have a chestnut icon, an apple tree an apple, an oak and acorn, and so on. We could include icons for nitrogen fixers or pollinizers too. I don't know that I like this idea but it is something to consider!