Thanks for the feedbacks and please be reassured that they are fully received and understood, and we will make enhancement to solve it.
We have can give an emergent patch for this now, with one side effects (reason why the brightness 1 is set a bit high), that colors are not represented accurately when brightness is low, e.g. light purple or pink looks more red, and cold white look a bit bluish.
If you can stand with this level of inaccuracy, we can expose the new patch to you via whitelist. This patch cannot go to the final release, because user may complain over this.
The long term fix requires some delicate modification in our color tuning algorithm and thus requires more time. We have started a workforce for this. Will report the progress in this thread.
Again, thanks for all your feedbacks and suggestions, and sorry for the inconvenience. Customer satisfaction is one of the major factors in our consideration and we will do our best to improve it.