A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
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I'm a little late to help the OP, but I have some advice that can help others. You can drive sprite colour using some basic colour blending math...
yup, still a problem for some of us, and I'm on fresh windows, all updates (GPU too) no weird security stuff. Tried 4 times - didn't get any...