I discovered you can order custom backlit keycaps; this was the natural next step : r/Stargate
PBT Backlit Keycap Upgrade Set | Cooler Master
English & Japanese Dual Languages Backlit Keycaps Set - Etsy Ireland
English & Hebrew Dual Languages Backlit Keycaps Set - Etsy
104 Keys Sunset Gradient Backlit Keycaps Thick Pbt Oem Profile For Cherry Mx Switches Of Mechanical Keyboard With Key Puller Sky Blue | Fruugo UK
English & Korean Dual Languages Backlit Keycaps Set for Mechanical Keyboard - Etsy
Ussixchare Backlit Keycaps 60 Percent for GK61 RK61 Anne pro Keyboard, 104 PBT Fullsize Keycaps Set for Ducky one 2 Mini 60% Mechanical Gaming Keyboard Gateron Kailh MX Switches (Violet): Amazon.co.uk: PC
PBT Doubleshot Backlit Keycaps Gradient Grey OEM Profile Keycaps 129 Keys Custom Side Print Shine Through Keycaps for 60% 65% 75% Cherry MX Mechanical Keyboard : Amazon.co.uk: Computers & Accessories