Spark’s Dark theme was designed to match Mojave’s new Dark Mode. But unlike many other apps, Spark includes toggles that give you more control over its color themes, including switching between darkener and lighter looks regardless of the user’s system-wide choice. This lets you use Spark’s darkened interface even if your Mac is set to use the default Light (Aqua) appearance, and vice versa, and iDB shows you how.
Websites and many Mac apps stay too bright even in the new Dark Mode on Mojave. HazeOver prevents them from disrupting your flow by automatically highlighting the front window and fading out all the background windows. This is great when using unoptimized apps and apps with a lighter background for text or web content, such as Mail, Safari and TextEdit.