EAPTCB G WHY CAN'T THEME/BACKGROUND COLOR BE CHANGED FROM BLUE ON COMPUTER VERSION? You didn't specify what operating system your computer has. On Windows version you can change the accent colour in settings.
timo On macOS Diarium uses the macOS theme color which you can change in the macOS settings. Unfortunately Apple doesn't provide a good API to dynamically adjust theme color app-wide for macOS apps
