What is possible in KalleWheel that I have not seen in any other color picker is to define light source colors and then see how different colors are affected (shifted) by these light sources. This was actually the reason I started to paint using the Adobe Color-themes extension and eventually decided to build my own extension. Just drag the color glyph from the pink towards the green on the circle no need to handle two independent controllers. Using the type of color wheel as KalleWheel or Adobe Color-themes are using, this is a much easier task. Using the standard Photoshop color picker with Saturation and Brightness orthogonal on a plane and Hue on a slider it is so much harder to transition for example from a pink to a green color by shifting two independent sliders (green and pink are opposite each other on the color wheel). The greatest advantage of having the Hue and Chroma light components on a 2D surface where Hue is directly dependent on the angle and Chroma goes from low in the center of the circle to high for bigger distances is the possibility to take advantage of the fact that Hue and Chroma are not independent when it comes to the colors of illuminated real world objects. But looking only at the color versions of the images above it is quite clear that the HCL color space better preserves the lightness of the colors. Photoshop actually uses the CIELab colorspace when converting to grayscale, which also has to do with why the grayscale image to the right seems to have more diverse lightness between colors. In the CIELab color space however, a yellow color with a certain lightness will seem roughly as light as a blue color with the same lightness. Even though the brightness (in HSB color space) is equal, the yellow color will seem brighter due to the pixel intensities of a screen as well as the way we percieve the colors. An example of this is when comparing a yellow color to a blue color. Comparing to the most common color space used by digital artists (HSB: Hue, Saturation, Brightness) a certain lightness will be percieved equally light independent on the other two light components. The HCL color space is directly derived from the CIELab color space which is made to reduce the interference our human perception have with the colors percieved. The extension should be found under Windwow -> ExtensionsĪ color choosen in KalleWheel is defined by the three components Hue (set by the angle from the center of the wheel), Chroma (similar to saturation, determined by the distance from the center of the wheel), and Lightness (set by the slider). After the plist file has been updated, read the file by, in the teminal, running defaults read .4 or equivalent.For reference to the latest version to update, all plist files can be found under ~/Library/Preferences/ For different versions of the software, a different number is needed. Note, the 4 in .4 corresponds to the CSXS version of the program. (This will tell Adobe programs to also run extensions that are installed in this manual way). Open a terminal window and execute the following command: defaults write .4 PlayerDebugMode 1.Move the folder from the previous step into this folder.In Finder Menu choose go->go to folder and enter the following folder name: ~/Library/Application Support/Adobe/CEP/extensions.If the extension was downloaded from github, the corresponding folder is the folder.
Some people report that they must use Stuffit Expander to unzip it as the OS X utility does not work for them.