This may have been covered before, but in 10.5 (Mac), feature or not, automation data graphics should always contrast (highly) with whatever the user’s chosen project background color is - assuming it isn’t a mid-contrast color issue. Editing black automation points on a dark gray background is impossible. So unless there is a color parameter user-setting for automation data, for now, I just switched to a lighter project area background.
I really like the color options offered in 10.5 - especially the mixer channel labels being only black and white for better legibility of names. The application just need to better handle coloring contrasts for visually-layered objects.