Changing the Blog's Main Font

I changed the main font on this site. The only paid font I own is Berkley Mono, but it is a monospace font designed for coding. Since I think serif fonts are the best choice for blogs, I investigated what font Medium uses. Medium uses Source Serif Pro, which was created by an Adobe designer. Fortunately, Google Fonts provides a similar font by the same designer called Source Serif 4, so I decided to use it.

Additionally, since Source Serif 4 is a variable font, I created a playground page to experiment with it. One of the variation axes in this font is Optical Size. While the concept of Optical Size has existed in the printing world for a long time, it only became available on the web with the introduction of variable fonts in 2016. When Optical Sizing is enabled, the font’s characteristics remain consistent even as the font size changes, which I find both interesting and effective.