When viewing Greek text with the default Greek font in the Desktop version of Logos (Sirba GRK), the smooth breathing mark (᾽) and the grave (`) aren't as bold either as the letters they are over, or other diacritics like the acute (´) and the circumflex (῀). This does not occur when I switch to Gentium Plus in Program Settings > Text Display > Greek Font. I'm including screenshots taken from Mark L. Strauss, Mark, ed. Clinton E. Arnold, Zondervan Exegetical Commentary on the New Testament (Grand Rapids, MI: Zondervan, 2014), 234.
Sirba GRK
Gentium Plus
Although the difference is slight in the screenshots, it's more noticeable (and distracting) in the app.
