Anyone know what is going on here? About a month or two ago I was driving and on my fuel gauge, just a small portion of the "F" and a small portion of the line above the "F" lit up really bright with a green light. Then it changed to bright blue. Not the whole "F" and not the whole line above the "F". I could see the light sort of growing and later shrinking in the size of area. I was driving in traffic so I couldn't pull out my phone to get a picture. At one point I was at a traffic light so I tried "shading" it to see if maybe it was just a reflection. It's not. And it's really bright! Brighter than when I have my lights turned on. Today when I started up my car it came back for a little bit and I was able to get a couple pictures. Is this a sign that the gauge is going out? I've never seen or heard of this before.