PhotoEffects can be downloaded and installed for absolutely free from the Windows App Store (link at the end).
Features of PhotoEffects:
When you install the PhotoEffects app and run it on your device, you will be presented with the main screen of the app which resembles the below screenshot.
As you can see in the above screenshot, you can either choose to open an image displayed in the main screen in tiled format (which are actually the images stored in your Windows Pictures library), or you can choose to open an image in another folder via the Choose a Photo button located in the top left corner of the screen. Once you have opened up an image either way, the editor interface of the app will fire up automatically.
As you can clearly see in the above screenshot, you will be able to see your image in the right side of the screen, and the various editing options displayed to you in the left side of the screen. You will see a real time preview of the image that you are editing towards the right side where your image is open. Suppose you want to adjust the Saturation, you can do so by clicking on the Effects button above, and then by clicking on the Saturation button which will reveal a slider, allowing you to do the same.
Once done, you can click on Accept, and then you will now be reverted to the effect selection page. You can choose to crop the image, etc. from here. You can also add borders etc. You can click on Accept to finalize the changes. With this, I wrap up the main features of the PhotoEffects app for Windows 8.
PhotoEffects is a decent image editor tool which is ad free as well as very lightweight. The app barely occupies any space, and the optimization effects that it offers are large, ranging from adjusting RGB, saturation etc. to adding frames and borders to cropping images. This app has all it takes to be a great image editor app, and the only qualm that I have with this app is that it takes a bit of time to apply the effects.
I rate this app a 4 out of 5!