Performance Pixels
Performance pixels are a visual representation of your performance during a study session.
To turn on Performance Pixels, pause any study session and click the toggle:
![](https://www.hackchinese.com/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBSZz09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--7da16244a77c907af9f908a8abefbf2953811738/performance.png)
Performance pixels appear on the bottom left of your screen:
![](https://www.hackchinese.com/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBSdz09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--1faa18310b9c8982aab946c894b44059f043313f/Screen%20Shot%202021-04-21%20at%201.55.22%20PM.png)
There are four types of pixels:
- Green pixels indicate that you remembered a review word. Good job!
- Red pixels indicate you forgot a review word. You'll see these words again in the same study session, and when you are able to remember them three times in a row, they will receive a green circle around them. Nice!
- Purple pixels indicate that you checked a word that was assumed known.
- Blue pixels indicate you learned a new word. Beautiful!
![](https://www.hackchinese.com/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBTQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--8c6d7b5b5eb9e5709d22adfcc72c4e49569d389a/actual%20pixels.png)