OPF Theme
Classic
OPFA 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.
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
light1
OPF background slot resolved from the active color scheme.
Dimensions
widescreen
widescreen
Default slide dimensions for this theme.
Default Layout
Chart beside
chart-beside
Pair a chart with an explanation of its result. Keep the text focused on the pattern or decision supported by the data.
Variants
Classic offers 4 variants. A variant is a map over the theme's one color scheme, as PowerPoint's color map is, never a second scheme: dark swaps the text and background roles, and an alt variant reorders the accents. Write a variant's value to design.variant (from core 0.23.0) to use it, for the deck or for one slide.
Light
lightAa{ "design": { "variant": "light1" } }Light alt
light-altAa{ "design": { "variant": { "background": "light1", "accents": [ "accent6", "accent5", "accent4", "accent1", "accent3", "accent2" ] } } }Dark
darkAa{ "design": { "variant": "dark1" } }Dark alt
dark-altAa{ "design": { "variant": { "background": "dark1", "accents": [ "accent6", "accent5", "accent4", "accent1", "accent3", "accent2" ] } } }
OPF Config
themes:classic{
"$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": "chart-beside",
"title": "Theme preview",
"subtitle": "Applies the \"classic\" theme bundle (color, font, background, dimensions)."
}
],
"catalogs": {
"default": {
"source": "https://www.pptx.gallery",
"themes": {
"classic": {
"name": "Classic",
"background": {
"type": "theme",
"slot": "light1"
},
"colorScheme": "cool-horizon",
"description": "A timeless, clean, and versatile theme with balanced color contrasts and classic typography. Ideal for professional, readable presentations.",
"fontScheme": "tenorite",
"dimensions": "widescreen",
"variants": [
{
"id": "light",
"name": "Light",
"variant": "light1"
},
{
"id": "light-alt",
"name": "Light alt",
"variant": {
"background": "light1",
"accents": [
"accent6",
"accent5",
"accent4",
"accent1",
"accent3",
"accent2"
]
}
},
{
"id": "dark",
"name": "Dark",
"variant": "dark1"
},
{
"id": "dark-alt",
"name": "Dark alt",
"variant": {
"background": "dark1",
"accents": [
"accent6",
"accent5",
"accent4",
"accent1",
"accent3",
"accent2"
]
}
}
]
}
},
"colorSchemes": {
"cool-horizon": {
"name": "Cool Horizon",
"accent1": "#2874A6",
"accent2": "#1B4F72",
"accent3": "#5499C7",
"accent4": "#7BDBB2",
"accent5": "#3AC67A",
"accent6": "#24A89E",
"dark1": "#000000",
"dark2": "#011842",
"followedHyperlink": "#551A8B",
"hyperlink": "#0000EE",
"light1": "#FFFFFF",
"light2": "#F0F0F0",
"summary": "Cool blue-green palette tuned for professional business decks.",
"description": "A balanced cool-toned scheme with deep navy, business blues, and teal accents. It works well across strategy, finance, and technical narratives.",
"tags": [
"professional",
"trustworthy",
"calm",
"technical",
"versatile"
]
}
},
"fontSchemes": {
"tenorite": {
"name": "Tenorite",
"app": "powerpoint",
"languageFamily": "latin",
"languages": [],
"major": "Tenorite Display",
"minor": "Tenorite",
"textSample": "Rounded modern tone",
"type": "sans-serif",
"description": "Tenorite is a sans serif OPF font scheme for Latin presentations, using Tenorite Display for headings with Tenorite for body text."
}
},
"layouts": {
"chart-beside": {
"name": "Chart beside",
"summary": "A chart with the takeaway beside it.",
"tags": [
"Visuals"
],
"direction": "column",
"regions": [
{
"name": "title"
},
{
"direction": "row",
"regions": [
{
"name": "chart",
"size": 3,
"accepts": [
"chart"
],
"role": "primary",
"flow": "none"
},
{
"name": "notes",
"size": 2,
"accepts": [
"text",
"list",
"metric",
"quote",
"chart"
],
"role": "supporting",
"flow": "column"
}
]
}
],
"description": "Pair a chart with an explanation of its result. Keep the text focused on the pattern or decision supported by the data.",
"preview": {
"vectorSrc": "https://www.pptx.gallery/layout-previews/chart-beside.svg"
}
}
}
}
}
}Load this config in the gallery's visual editor, or in the Inspector at pptx.dev.
OPF Theme Fields
Color Schemecool-horizon
Font Schemetenorite
Backgroundlight1
Dimensionswidescreen