I use a dark color theme and the breakpoints and search results are hard to tell apart (orange and red). Is there any way to change the colors?
Yes, it is possible. You can change the colors by going to the Tools menu -> Options then go to Environment -> Fonts and Colors:
For the breakpoint line: Breakpoint (Scroll bar)
And for the find result: Find Match Highlight
And the result (bright red for the breakpoint and Lime for search results):