According to WP, "Longer-life tubes that were manufactured later in the Nixie timeline have mercury added to reduce sputtering[4] resulting in a blue or purple tinge to the emitted light. In some cases, these colors are filtered out by a red or orange filter coating on the glass."
So, if coloring the outsides of the tubes is within the bounds of authentic nixie practice, and the unfiltered light output is usually orange-ish, then perhaps a red filter on the “black” pieces and a green filter on the “white” pieces would be a solution?
The target market for “art” is very much “rich idiots.”
The rest of us are welcome to appreciate art, but we are not expected to pay for it.
