Putting this here so I remember to fix it when I get a chance.
@invisnet reported issues with the Dark Theme code blocks.
Looking at 2 plugins for CP - #16 by anon71687268 the code block is using white on white.
How about making the background color the same as for “normal” quotes? I think it will look really nice after that.
Perhaps just me (and I don’t use the dark theme, so, this is simply informational,) but, I can’t read the variables at all. I know they’re there as that was from something I posted, however, they look like off-color blotches under the proposed color scheme; it’s not even readily apparent that those are textual characters.
Now it’s the-same-thing-in-reverse. I can read everything if I strain hard, but the color used for (e.g.) ob_start(); is exceptionally trying on that background. Again, take this with a grain of salt as I don’t even use the dark theme.
Well, now… I can see everything in this latest render… it must look absolutely terrible to everyone else. 
I think it looks okay - it is code so it shouldn’t be pretty to look at, right? 
I will mark this as solved for now, we can continue to fine tune if we hear from anyone else 
That looks very good to me. The part with the lowest contrast ratio is probably the return and eval now, but it is still easily readable.
That’s looking good now - thanks!