After investigating expression nodes in detail here, I stumbled on some undocumented features that could give your UIs some interesting new twists (if used in moderation!).
I have not fully explored all possibilities, so there might be more.
I have tested in it LabVIEW 4.0 through 2013SP1 and it seems to work everywhere. (Versions below 6i show some slight pixelation artifacts, but that can be ignored)
Look what it can do!!!!
I think the rainbow needs differend colors. ( then again I am an electrical engeneer )
Also, according to this scheme, the sign of the numerics in rainbow format will be output in the infra-red portion of the spectrum whereas any units trailing the numbers will be in the UV region, effectively highlighting the dangers of using units in LabVIEW.
You may need a monitor with extended colour gamut to see the full effects.
Hey wow, you can see through to the block diagram. Better put a perspex plate over that, you don't want animals getting in there and gnawing on the wires.
Just duplicating the myRIO design, where you can see the "circuits" under a glass cover. 😄
It's nice to keep things standardised.