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For using the tablet in a dark room, I am trying to set my screen dimmer than the lowest brightness setting that windows provides. Just like you would use screen filter in Android devices.

So far I have only found 2 portable apps that does this:

However, while they do dim the screen, it only dims the normal desktop applications. Once I switched to Metro interface, the screen still shows as its normal brightness.

Is there a way to dim the metro interface screen brightness dimmer than the windows lowest brightness setting?

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"Questions seeking product, service, or learning material recommendations are off-topic because they become outdated quickly and attract opinion-based answers. Instead, describe your situation and the specific problem you're trying to solve. Share your research. Here are a few suggestions on how to properly ask this type of question." You could edit your question to be more on-topic by asking just "how to do I accomplish this", rather than "I need a tool to..." –  nerdwaller Feb 21 at 16:32
I do think I shared my research, described my situation and put in a certain amount of effort. Of course I googled, but the hot results from things like "windows rt brightness dim " only gives you how to disable auto brightness or the usual windows setting. I need something that can "FURTHER" dim the screen, and the tool I found so far does not work for Metro. –  Moe Tsao Feb 21 at 16:41

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