Block Arrows

Left arrow callout

"shape": "leftArrowCallout" draws PowerPoint's leftArrowCallout preset. The PPTX export writes it as a native shape with its adjust values, so it stays editable in PowerPoint.

Search words: arrow, label

Frame

A shape block takes the largest frame of 1.5:1 (width to height) that fits its cell, centered; set aspectRatio for another. Text inside is fitted to the preset's text rectangle and never set below the readability floor.

Adjust Values

Name	Default	Range
adj1	0.25	0 to 0.5
adj2	0.25	0 to 0.5
adj3	0.25	0 to 1.5
adj4	0.64977	0 to 0.83333

OPF units: fractions (most often of the shorter side) and degrees, for example "adjust": { "adj1": 0.25 }.

OPF Config

{
  "$schema": "https://openpresentation.org/schema/opf/v1",
  "name": "PPTX.gallery — shapes/leftArrowCallout",
  "description": "The leftArrowCallout preset as an OPF shape block.",
  "slides": [
    {
      "title": "Left arrow callout",
      "blocks": [
        {
          "shape": "leftArrowCallout",
          "text": "Left arrow callout"
        }
      ]
    }
  ]
}

Frame

Adjust Values

OPF Config

More Block Arrows