### Issue Summary OS:Windows 11 Browser: Pale Moon 31.0.0 The subpixel hinting had disappeared and the formulas became unreadable. They are rendered in greyscale. Now, subpixel rendering works in the following math renderers: Preview HTML, MathML Does not work in: HTML-CSS, Common HTML. The problem can be seen on Math.Stackexchange site. ### Technical details: * MathJax Version: MathJax v2.7.5 * Client OS: Windows 11 * Browser: PaleMoon 31.0.0 ### Supporting information: * Please supply a link to a (live) minimal example page, when possible. https://mathoverflow.net/questions/423657/lemniscate-numbers-and-others-what-would-be-the-properties * If your issue is with the display of the mathematics produced by MathJax, include a screen snapshot that illustrates the problem, when possible. 