Once nice thing about DDG is, if you really need to hit another search engine (I've noticed Google does a decent job when I'm searching for the resolution to a highly technical/specific issue), you just use the bangs, like !g for Google.

They have 13,099 bangs[0] at present.

[0] https://duckduckgo.com/bang

Solarized DuckDuckGo made me switch... here's a shareable link with the custom colors: https://start.duckduckgo.com/?kae=%23073642&kj=%23073642++&k...