No one got back to me, so I just went ahead and purchased the DARCSS theme. I haven't used it long, but it's definitely different from Construct's included "dark" theme. I like it so far!
I have a few minor issues, but I love that it allows me to see more of my project at once! For example, I just opened a group and measured how much vertical space my events required:
Default Theme: 716 pixels
Dark Theme: 853 pixels
DARCSS: 582 pixels
This means I can see more of my "code" without having to scroll up and down!
Dislikes So Far:
- I'm sure I'll eventually get used to it, but some windows (like the animation editor) are really hard to distinguish from the background as they are nearly the same color.
- This is minor but DARCSS uses red and green colored rectangles for anything that can be toggled true or false (i.e. whether a sprite is global or not). It's a neat feature, but now it's a bit harder for me to to change font or other colors as I used to just look for the colored rectangle. Now, there's a bunch of them!