To do a screen shot, get what you want on the screen, type the "prt scrn" button. Then open paint, paste, crop if desired & save. Then it's a pic file that can be uploaded. Your chart sounds prettier to look at!
Here's the sheet of bloom colors:
The one showing bloom times (as well as dates attached where there's a red triangle to click in the corner, maybe a cultivar name.) I tried marrying the two originally but the colors I'd select, I'd have to find again later, so it was too cumbersome. I decided to use the colors for other things, especially handy after moving from OH to AL, to compare how same stuff behaves differently in different climates.
I've been messing with this file for about 15 years, when I discovered spreadsheets, so there's a strange mix of common/correct botanical names, and some of the stuff indicated as not hardy is fine in the ground where I live now. Most of the stuff on both lists, I no longer have, concentrating more on shrubs & nectar-producing plants, way too many potted plants that aren't hardy.
