[W126 Coupe] Outside temperature gauge

[Dick Spellman]

Has anyone else noticed if there outside temperature gauge gets brighter 
as the outside temperature rises?  I've seen where my dash gauge is 
almost cool blue in cold temps hovering around 0C or 32F and changing to 
a frosty white color with little flakes at -8C or 20F or lower.  Now 
this past week where it's been fairly hot (like 25C or 85F) and humid 
the gauge is now amber in color with a few drops of moisture appearing.  
I am waiting for a really hot day to see if in fact that amber turns to 
bright orange with flames in the window.  Anyone from the desert 
southwest or Southern Australia in summer that can confirm this?

Most impressed with the visual feedback on my outside temp gauge these 
days!  What will MB think of next?

Dick