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.thmx

Office Theme

Presentations

THMX stores Office theme colors, fonts and effects rather than a completed deck. Apply it to a copy because it changes appearance.

Main use
Reuse colors, fonts and effects
Data type
Binary data
All sections, questions and sources

Content reviewed： · Editor：Kai

Opening steps

Choose your environment or purpose to see its steps.

Theme tools in PowerPoint and Office

Preserve the original and inspect a working copy in a compatible application.

  1. Open a presentation copy in PowerPoint.
  2. Browse for the THMX through theme selection.
  3. Inspect headings, charts and shape colors.
Inspect the received file and its requirements

Establish dependencies and settings before proceeding.

  1. Identify whether the delivery is a theme or template.
  2. Check availability of referenced fonts.
  3. Record objects with direct formatting.

Menu labels and support vary by app, OS and version. Preserve the original before making changes.

Troubleshooting by symptom

  • Unchanged shapes: check for direct rather than theme colors.
  • Fonts substituted: check font availability and licensing.
  • No new layouts: determine whether you need a template with masters.
  • Wrong theme: compare the applied theme with the saved file.

THMX → theme applied to a document

  1. Save the themed presentation as PPTX and export a reading PDF.
  2. Reopen the output and check it against the preservation points in this guide before handoff.

The theme alone cannot restore source text, images or every layout.

Theme colors versus direct colors

Theme-linked and fixed colors behave differently. Start with representative charts and shapes to understand the changes.

Source for these steps：Microsoft · Create your own theme in PowerPoint / Microsoft · File formats that are supported in PowerPoint

Worked example: checks before handoff

Example: inspect a chart, table and background, including printed text readability, when changing corporate colors.

Source for these steps：Microsoft · Create your own theme in PowerPoint / Microsoft · File formats that are supported in PowerPoint

Related-format differences

Related-format differences
Format / methodPurpose and preserved information
.thmxReuse colors, fonts and effects
POTXA template for creating standard slides.
THMX → theme applied to a documentThe theme alone cannot restore source text, images or every layout.

Handling and security

Retain the original deck and check font-use terms when sharing.

Questions and answers

Is it the same as POTX?

POTX is a template with layouts and reusable content.

Does it include the actual fonts?

Font references and font-file delivery are separate.

Should the theme contain my text?

Find the text in the original document.

Format facts: name, steward and MIME type
Formal name
Office Theme
Steward / specification
Microsoft
MIME type
Consult the producer or delivery system. The extension alone does not establish a MIME type.

Primary and official sources