That seems to be true of a lot of them. Though some were released way too dark to cover inadequacies. Well I kid you not that her hair lightens throughout the feature and goes back at the end. Whether intentional or not, it's there. Other than that, it's fine. Certainly better than the yellow cast that's apparently the "restored version".
"Now, I think we can all agree that Sleeping Beauty´s BD is the most accurate and was beautifully restored."
I take it you didn't read the thread? ^_- While it's easily not the worst out there, there's problems galore with the Sleeping Beauty BD. From hissy original audio and some shoddy DNR work, odd brightening issues to questionable color timing which the previous version is also accused of I believe . When you have at least three color timings for a film, each one with supporters and detractors as to it's authenticity, it's hard to say we can all agree that one is the most accurate based on apparently nothing outside of some similarity to an "unrestored" version. I know I certainly have my doubts. ^_^