Windows cannot put a 10bit wallpaper imho. JPG is limited by design... the more you have to regedit tweak to prevent image compression when putting wallpaper... ie digging in the wrong direction.
The amount of content is really low. Unfortunately yes... but that's the reality.
10 bit color is not possible with a jpeg but on a 10 bit display you only see the colors that can be referenced not the colors that are out of spec. That said BMP, DIB, PNG, TIF, TGA, and hundreds of other file formats support 10 bit color. So you picture of your kids you took on a cheap digital camera that crushed the information down to FRFGDB8A instead of 16R16G16B16A2, still shows the same colors it is only the colors outside of the Adobe RGB and NTSC8 that are unused. Cameras that store the raw data can be run through programs to output TIF or TGA file formats and those can be saved as light weight PNG files that support some of the colors that are REC2020 which stands for recognizably twenty twenty vision. In theory the TIF, TGA32, PNG, BMP/DIB, and EXR all support REC2020. Until we have 16 bit displays we can not know if they look like sun light nature. So far on nonfar displays PNG, TIF, EXR, KRA, BMP/DIB can all display more colors. I had to pull out my pantone color book to verify the colors actually match but as far as I can tell there are not enough separations are the midtones and replicating some of the purer tones of red, yellow and blue are still not possible. A pure saturated yellow like saffron or the freshly painted yellow strips on the road is 12 14 or 16 bits away from white, the red that can not be displayed is the old fire engine red or the pantone color rouge. The blue that can not be displayed is Azure which is offend replaced by baby blue or torqise because color blind people can not actually the color, it just appears to be grey color. One of my friends Paul Meyer is color blind and I showed him the fabric of my pants and asked him what he saw and he said it had to red it was like looking at an old fire engine. He sighed and asked what color it was. I grinned and said blue or more properly azure. He blinked and said blue is darker than that. I got him to explain what color he saw and I dug a hematite rock that had been in a rock tumbler and he said the hue is the right color but there is a pattern that moves in the pants. I grinned and said it is velvet, which is made in the traditional period method, of electroplating ores to wood pulp fibers which are refereed to as rayon or the sheep skin that the Scots and the Irish could not tear in half.
Most artists working off pantone color proofs say that they can tell the difference but some paintings that are painted with less saturated colors would still look normal on both displays. In video games it is usually the particle effects that use the separations and wider gaument from the center of the color triangle to make the colors stand out from the back ground and the characters. Games that achive the best use of fore ground mid ground, back ground and distant zone, use a color shift shader so that if the object is so far from the camera it uses mip map type technology to desaturate the colors as they get further away from the player. That only works so well and usually goes too far. But when you have ten bits of color you can shift the ground to darker versions of the same primary set of colors so that if and area uses yellows the ground might have eight bit colors that are all less saturated colors, which the things projected away from the ground the buildings might use a gradient to have the lowest level be the same less satureated colors while the building that tower over the character are more saturated until the distance they are from the camera de-saturates them back to greys and more natural earth tones. Then the characters which need to be in the foreground are full ten bit range allowing for players to look different than each other and always appear to stand out from the back ground. The partial effects usually limit to not include any eight bit colors, except grey tones.
The short version Microsoft has an app that helps you find ten bit backgrounds if you have a ten bit display, but unless you think the backgrounds that you have are missing the more saturated colors then you might not actually notice the difference.
The header file for jpeg and png. The 8 bit far devices likely are because some people would use jpegs to find the missing colors. JPEG 2000 was an attempt to create a jpeg that did not have the 8 bit color limitation but all JPG files that are properly created are not limited to Adobe RGB but they sample the 12 bit colors that are there and store only the color values that are present. That is what the sampling is for. The values are sampled based on a straight line from 255 to 0 with 248 being pure white and 13 being black, so that a color that is sampled as 252 is supposed to be the missing colors that show up as brightest blue the color program can display. torquise was the brightest blue abode could display in the late ninties when it came out so all the programs that could display 12 bit analog color where wrong about what color azure was, and they eventually lost that fight with the fashion industry, but most of what people see on computer monitors is impacted by the years in which you had people who worked in the fashion and design industries and everyone else who was stuck with a lcd monitor capable of 256 separations of color. The logos stayed pantone colors because companies and corporations where not willing to be less than competitors.
JPEG 8bit FAR
1616148
R G B A
PNG 10/20 bit
161616162
R G B A Upper/Lower
