Keep in mind that changes such as this causes me to have to do version checking in UD to determine which version of Unraid is running so I can determine the "On" color to use. Between 6.6.6 and 6.7 there was a change in the drive used/free graphics that caused me to have to check the Unraid version to display the used/free graphics properly. The LT team is always looking forward (this is a good thing), but I have to always look backwards to maintain compatibility with older versions of Unraid. I don't mind some changes that make sense, but until the day that LT rolls UD into Unraid (probably not going to happen real soon) or I stop supporting older versions of Unraid (I really don't want to do this), I have to sort out backwards compatibility issues. This takes time and I volunteer my efforts as do many others.
For example. This came from the drive used/free graphics change in 6.7 that I had to sort out yesterday. It was quite confusing to me at first because I did not know there was a change.
The font awesome icons are a good improvement in the UI experience and were backwards compatible to 6.4, so that was not a big deal.
I agree that the switches should be highlighted, but they have been blue for as long as I can remember and now we have to change them?
My point is try to minimize the changes just for change sake. If a change really enhances Unraid, I will do what I can to accommodate.