What happens when you highlight or mute certain drums in the drummer editor?

When you highlight or mute certain drums in the drummer editor, it modifies the selected drum pattern. This feature allows you to customize the drum parts in a way that aligns with your creative vision for the track. By selecting specific drums to be highlighted or muted, you enhance or reduce the complexity and texture of the drumming, tailoring the pattern to fit the style and dynamics of your music. This level of control empowers you to make more nuanced adjustments, effectively shaping the rhythm section of your arrangement.

The other options do not accurately reflect the function of the drummer editor; changing the tempo, altering arrangement markers, or affecting overall effects would involve different features and controls within Logic Pro that do not relate directly to selecting or muting drums in a specific pattern.