Andy Walker / Android AuthorityDark Mode is a truly unsung Android interface hero and one that every user seemingly takes for granted. I have my phone automatically switch to it on a schedule each night, which ensures that I don’t burn holes in my retinas before I nod off.Schedules, while useful, can be far too rigid. I often wish my phone could automatically flick between light and dark modes depending on the brightness of my surroundings. While Android might not have this as a built-in option, a third-party app called Adaptive Theme gives my phone this power. How do you…