Colorful Fractals Images is a screensaver that displays abstract images and images with repeating patterns - not true fractals - while your Roku is idle (see screenshots below). This screensaver does not offer any options like time or weather, and you cannot change the image display time. Screenshots are shown below.
Unfortunately, the screensaver also shows a fixed box with text and a QR code that links to a website that asks for donations to support Ukraine in its war effort. If you are concerned about image burn-in, you may not want to use this screensaver because that text box and QR code do not move while the screensaver is active.
To set this screensaver to activate when your Roku is idle, install the screensaver then go to Settings from your Roku's home screen and select Theme >> Screensavers >> select the screensaver >> Set as screensaver. You can also manually activate the screensaver by launching it from your Roku's home screen like any other channel.
-- Information is current as of November 23, 2022
CHANNEL STORE DESCRIPTION: Enjoy perfect fractal symmetry in HD. A 100% charge of aesthetic pleasure.
CHANNEL STORE CATEGORY: Apps
DEVELOPER: VlogBox, Inc.