WCAG high-contrast color palettes for low vision

[Moin]

The download and original image buttons below the image lightbox are very difficult to read.

[pmusaraj (Penar Musaraj)]

Thanks for the report, Moin. This PR should fix it: A11Y: Better contrast for lightbox overlay links by pmusaraj · Pull Request #25208 · discourse/discourse · GitHub

[Moin]

The delete icon in the topic wrench menu has the same color as the background.

[awesomerobot (Kris)]

Thanks! Will be fixed by

A11Y: fix color issue with delete topic button in WCAG palette