This would have to be confirmed by an Adobe InDesign engineer but I am forced to conclude that the little Color Theme Tool floating palette is not color-managed? Meaning, it's colors are being displayed in the Monitor space without first being converted to the Document RGB space. Here's a fresh screen capture to illustrate: I think I'm slowly getting the gist of this tool. The green and blue component are "close" (125 vs 119 and 140 vs 143) but the red is out of line (213 vs 243). The original Photoshop "area" is RGB 245 119 143.Īfter sampling with the Color Theme Tool, using the Shift key down, it becomes RGB 213 128 140, still "darker"? That resulted in a small improvement in brightness overall - lesson learned, but still, a far cry from the original RGB color. So I selected an area in the Mad Hatter's hat, in Photoshop, and used the Average filter on it, to make sure that, upon "picking" in InDesign, it would have a uniform area to select from. It makes sense to think that both the regular Color Picker and the Color Theme Tool are NOT sampling a 1x1 pixel area but a larger one from which they must be "averaging" the color. Jeffrey's suggestion led me to take a closer look at that Mad Hatter image, in Photoshop.Ĭlearly, the area I'm sampling from with the Color Theme Tool, has suffered heavy JPEG compression (typical 8x8 square pattern). The cherry on the icing, if I may say so, with the implementation on, is the fact that, upon completion, it's plain to see where the "tool" sampled the colors from, as shown here:
To do a fair comparison, I made sure to "Proof" colors, so that the CIE Lab colors don't overly look "bright" as compared to their InDesign counterpart.ĭon't get me wrong, I think the Color Theme Tool is a neat little addition to InDesign's toolbox but, as it stands, according to my limited understanding, it systematically "dumbs down" the colors of ANY image, regardless of the Document Intent (I experimented both ways, Print and Web, tried all the settings in the Color Theme Tool options). Granted, generated themes are encoded in CIE Lab space. The Document Intent is "Print" ("Web" in the above screen capture), so the Color Theme Tool generates CMYK colors, out of the sRGB image. Here's a simple example, an sRGB image I picked the other day on Facebook. I may be missing something obvious, after all this time. Why is there such a difference between the colors generated out the same image with both and InDesign's own Color Theme Tool?Īfter much experimenting, I can only conclude that the Color Theme Tool is far from "matching" in quality.
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