Font Readability / Topic
There are various fonts available for styling purposes. However, defining fonts for reliable and safe text reading is a challenging discipline. There are many fonts and use cases where a character may look like another character. For example, 6 may look like 8 or vice versa, depending on the dimensions of the shapes and curves of the font. Also, if the text is highlighted or selected in a text field, the colour or background changes, the viewing angle or distance changes, the characters are unevenly spaced or too close, or a capital letter precedes the character. Especially, for numeric figures, but also text articles.