I had a question about color spaces. Basically I’ve noticed that the colors can look slightly different depending on which “Working Space” is selected in Color Management under After Effects’ Project Settings. So which working space should I select (e.g. SI RGB, sRGB, etc.) so that the post-LUT colors there look like they do in Dr Dre’s program (when you build the color matching model)? Also, does it matter which program you use to take the reference & test screenshots? I’ve been using VLC to do this (and then editing in GIMP to align them properly), but I’m not sure if there’s some better way.
In principle it doesn’t matter which color space you use, as long as you use it consistently. Some color spaces have a wider gamut, meaning that it can represent a wider range of colors than the standard sRGB. The display colors in the tool are sRGB, I believe.