font size weight high area programming properties Letterspacing Key font parameters Cap height determines overall size point Diagram Key font parameters

 https://www.w3.org/TR/2018/REC-css-fonts-3-20180920/
https://www.w3.org/TR/css-fonts-4/


https://developer.mozilla.org/en-US/docs/Web/CSS/font-size-adjust
https://www.researchgate.net/figure/Key-font-parameters-Cap-height-determines-the-overall-size-point-size-which-is_fig7_8504113
Key font parameters. Cap height determines the overall size; point... | Download Scientific Diagram
(PDF) Adjustable typography: An approach to enhancing low vision text accessibility
https://www.researchgate.net/publication/8504113_Adjustable_typography_An_approach_to_enhancing_low_vision_text_accessibility

https://m2.material.io/design/typography/understanding-typography.html
Understanding typography - Material Design
Type properties A typeface is a collection of letters. While each letter is unique, certain shapes are shared across letters. A typeface represents shared patterns across a collection of letters.Typefaces that are selected for their style, legibility, and readability are most effective when following the fundamental principles of typographic design.Names of letterform parts: aperture, ascender, baseline, cap height, descender, leading, letter-spacing, sans serif, serif, stem, stroke, x-height