Block Overlay

Block Overlay replaces the outline on the block you're looking at.

Settings

Mode

Hidden
No highlight at all.
Vanilla
The vanilla black outline.
Side
Highlights only the face you're looking at.
Full
Highlights the whole block.

Overlay

Visible

Fills the highlighted block or face.

Color

The fill color and opacity.

Outline

Visible

Draws an outline around it.

Color

The outline color and opacity.

Options

Thickness

The outline thickness.

Persistence

Also shows in spectator mode.

Depthless

Draws it on top of other blocks.

Barriers

Also highlights barrier blocks.

Hide plants

Doesn't highlight grass and flowers.