What is MIME type "application/x-stargallery-thm"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The MIME type application/x-stargallery-thm designates files created for StarOffice Gallery themes. It is a non-standard type reserved for storing design and layout settings.

Files with this MIME type, usually ending in THM, hold visual style data. They define how image collections and layouts appear within the gallery environment.

Main use case: It provides a set of instructions for a gallery’s look and arrangement.
Practical detail: It stores settings like color schemes, fonts, and layout guidelines.
Additional use: It ensures a consistent visual style in StarOffice applications.
Technical note: Being an experimental MIME type, support may be limited to applications designed with StarOffice in mind.

For more context on StarOffice gallery themes and related file types, see StarOffice.

Associated file extensions

.thm

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-stargallery-thm

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-stargallery-thm">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/x-stargallery-thm');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.thm

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.