Red plastic opto filter for 7 seg LEDs?

[Yorkie]

What about a front panel from a scrap video player?
I may have one in the loft it that is any good, but cannot remember what colour the display is.

Thanks for reading and for your helpful reply Paul.

That's a possibility.

I'd just assumed that since 7 seg LED displays are widely stocked by component supplier, that they'd also still stock the little strips. Thin translucent plastic sheet (1,2,3 mm etc) is widely available, but the stuff used for displays is polarised filter material - not just normal plastic.

They used to sell it in strips about 1" wide and 4" long, for digital readouts, clocks etc. Some outfit or another probably still does!
Murphy's law is such that I've proably got some stuck in a drawer in a 'safe place' for when it might come in handy. Like now!