OPF Theme

Classic

OPF

A timeless, clean, and versatile theme with balanced color contrasts and classic typography. Ideal for professional, readable presentations.

Timeless, trustworthy, light

Classic Theme

Best For

-Executive briefings and board presentations
-Financial reports and investor updates
-Legal and compliance materials
-Academic and research presentations
-Formal leave-behind decks

Avoid For

-Startups wanting a bold, modern image
-Consumer-facing or entertainment contexts

Composed References

These links point to the live gallery entries that represent the theme's color, font, background, and default layout choices.

PPTX.dev source

Color Scheme

Cool Horizon

cool-horizon

A balanced cool-toned scheme with deep navy, business blues, and teal accents. It works well across strategy, finance, and technical narratives.

Font Scheme

Tenorite

tenorite

Tenorite is a sans serif OPF font scheme for Latin presentations, using Tenorite Display for headings with Tenorite for body text.

Background Slot

light1

OPF background slot resolved from the active color scheme.

Dimensions

widescreen

Default slide dimensions for this theme.

Default Layout

Data Visualization

data-visualization

Clean charts and graphs with supporting text. Present complex data in digestible formats.

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OPF Config

themes:classic

Open Presentation Format

{
  "$schema": "https://openpresentation.org/schema/opf/v1",
  "name": "PPTX.gallery — themes/classic",
  "tags": [
    "gallery:themes/classic"
  ],
  "design": {
    "theme": "classic",
    "colorScheme": "cool-horizon",
    "fontScheme": "tenorite",
    "background": {
      "type": "theme",
      "slot": "light1"
    },
    "dimensions": {
      "preset": "16:9"
    }
  },
  "slides": [
    {
      "id": "gallery-preview-1",
      "layout": "data-visualization",
      "title": "Theme preview",
      "subtitle": "Applies the \"classic\" theme bundle (color, font, background, dimensions).",
      "design": {
        "contentBox": false,
        "contentAlignment": "left",
        "titleAlignment": "left",
        "contentDirection": "horizontal"
      }
    }
  ],
  "catalogs": {
    "layouts": {
      "records": [
        {
          "$schema": "https://openpresentation.org/schema/opf-layout/v1",
          "id": "data-visualization",
          "name": "Data_Visualization",
          "label": "Data Visualization",
          "summary": "Clean charts and graphs with supporting text. Present complex data in digestible formats.",
          "description": "Clean charts and graphs with supporting text. Present complex data in digestible formats.",
          "tags": [
            "Charts",
            "Analytics",
            "Data"
          ],
          "master": "Gallery",
          "masterSlideIndex": 3,
          "groupHash": "153f444c25792e384c219fafc5ca1a0324103c782fa01f0902391c0014076cad",
          "groupDefault": true,
          "contentType": "Chart",
          "contentMultiple": "1x",
          "contentAlignment": "Left",
          "contentBox": false,
          "contentTypeChartPrimary": "None",
          "contentTypeImageFill": "None",
          "contentTypeListBullet": "None",
          "contentTypeListHeading": false,
          "slideTitle": true,
          "slideTitleAlignment": "Left",
          "slideImage": false,
          "slideImageAlignment": "None",
          "slideLayoutDirection": "Horizontal",
          "zones": [
            {
              "role": "title",
              "placeholder": "title"
            },
            {
              "role": "chart",
              "placeholder": "chart content 2"
            },
            {
              "role": "text",
              "placeholder": "text content 3"
            }
          ],
          "preview": {},
          "details": "Clean charts and graphs with supporting text. Present complex data in digestible formats. OPF placeholders: title, chart, text.",
          "category": "data-analysis",
          "spatialCategory": "2 zone row",
          "contentTypeTags": [
            "comparison",
            "mixed",
            "chart"
          ],
          "placeholders": [
            {
              "type": "title"
            },
            {
              "type": "chart"
            },
            {
              "type": "text"
            }
          ],
          "composition": {
            "mode": "row"
          },
          "slideSubtitle": false
        }
      ]
    }
  }
}

Open in OPF Playground Open in visual editor

Preview this config live at pptx.dev/playground, or load it in the gallery visual editor.

View registry.json

OPF Theme Fields

Color Schemecool-horizon

Font Schemetenorite

Backgroundlight1

Dimensionswidescreen