CRTs get all the retro-hype, but oldschool portable PCs had slimmer alternatives: monochrome/grayscale LCDs, orange plasma panels, and yellow electroluminescent ones. Why not add those too, and throw in a little bonus tool to emulate how some of them faked grayscale "shading" on 1-bit monochrome?
As Kermit the Frog and his IBM 5151 display once commiserated with Greta Thunberg, "it's not easy being green". This update here should make it less difficult - and there's also amber, various shades of white, and a few more settings you can tweak.
...or: Who needs shaders - just do it the slow way! A Windows batch file with a bunch of tunable options, so you can apply the effect to a still image or a video, and still be back in time for dinner (or the next geological epoch, whichever comes last).
A tool for quick and painless file transfers from host to guest. No need to restart the emulated machine, to create temporary images manually, or to set up any kind of networking: one click, and your files go through.
Most Apple ][ emulator screenshots out there completely misrepresent the color and resolution of that machine's composite video output. Here's how to fix that.