There's a really nice, very low-power, 84x48 B&W LCD screen still widely available for electronics use, a clone of a Nokia 5110 screen - see e.g.:

- https://github.com/akavel/clawtype#clawtype

- mandatory "Bad Apple" vid (not mine): https://youtu.be/v6HidvezKBI

(for the "splash screen" linked above I used font u8g2_font_3x5im_te: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8... and a multilingual u8g2_font_tiny5_t_all: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8...)

> Too bad "tiny screens" pretty much do not exist anymore. Screens with hundreds of pixels on each side are very cheap already.

Find me a 0.66" OLED display for ~$1 that has hundreds of pixels on each side then.

> It reminds me people who research "colorizing grayscale photos", which do not exist anymore either (if you want a color photo of someone you met in your life, there probably exists a color photo of that person).

What train of thought led you to think people are primarily researching colorising new B&W photos? As opposed to historical ones, or those of relatives taken when they were young? You can take a colour photo of granddad today but most likely the photos of him in his 20s are all in black and white.

Quick browsing at adafruit.com (or any other similar vendor), reveals plenty of displays that are 128, 240, and 320 pixels wide. At 6 pixels of width per character, that's only 21, 40, and 53 characters wide. Seems quite useful to me.

There are also several 32x32 led panels, which one could imagine needing some text.

Also, this kind of thing is just interesting, regardless of the usefulness.

> Too bad "tiny screens" pretty much do not exist anymore.

https://www.crystalfontz.com/product/cfal12856a00151b-128x56... - 128x56

https://www.crystalfontz.com/product/cfag12864u4nfi-128x64-t... - 128x64

There's a whole world of embedded devices with wide varieties of screen resolutions.

Terminals are tiny screens.

There exist plenty of reasons to colorize grayscale photos in 2026.

* a huge corpus of historical imagery

* cheaper grayscale cameras + post processing will surely enable all sorts of uses we haven't imagined yet.

* a lower power CCD and post-processing after the fact or on a different device allows for better power budget in cheap drones (etc).

* these algorithms can likely be tuned or used as a stepping stone for ones that convert non-visible wavelengths into color images.

And that's just off the top of my head as someone who doesn't really work with that stuff. I'm sure there are plenty of other reasons I can't think of.