Hi Richy - this has been suggested a few times now

For the most part it's down to personal preference, I like a more subtle scheme as do many others, but I know some would prefer it to be a bit bolder!
On a more practical note, I'm also aware that some find it a bit tricky to make certain things out, so... I'm planning to add a "High Contrast" scheme at some point soon, will keep you posted!