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  2. RGBA color model - Wikipedia

    en.wikipedia.org/wiki/RGBA_color_model

    RGBA stands for red green blue alpha. While it is sometimes described as a color space, it is actually a three-channel RGB color model supplemented with a fourth alpha channel. Alpha indicates how opaque each pixel is and allows an image to be combined over others using alpha compositing, with transparent areas and anti-aliasing of the edges of ...

  3. Comparison of Android e-reader software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Android_e...

    Other software e-book readers for Android. Other e-book readers for Android devices include: BookShout!, Nook e-Reader applications for third party devices and OverDrive Media Console. Additionally, Palmbookreader reads some formats (such as PDB and TXT) on Palm OS and Android devices. The Readmill app, introduced in February 2011, reads ...

  4. OpenDocument technical specification - Wikipedia

    en.wikipedia.org/wiki/OpenDocument_technical...

    Each sub-document within a package has a different document root and stores a particular aspect of the XML document. All types of documents (e.g. text and spreadsheet documents) use the same set of document and sub-document definitions. As a single XML document – also known as Flat XML or Uncompressed XML Files.

  5. APNG - Wikipedia

    en.wikipedia.org/wiki/APNG

    Animated Portable Network Graphics ( APNG) is a file format which extends the Portable Network Graphics (PNG) specification to permit animated images that work similarly to animated GIF files, while supporting 24 or 48-bit images and full alpha transparency not available for GIFs. It also retains backward compatibility with non-animated PNG files.

  6. CSS - Wikipedia

    en.wikipedia.org/wiki/CSS

    e. Cascading Style Sheets ( CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML ). [ 1 ] CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.

  7. XML - Wikipedia

    en.wikipedia.org/wiki/Xml

    Yes. Extensible Markup Language ( XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

  8. Opaque data type - Wikipedia

    en.wikipedia.org/wiki/Opaque_data_type

    Opaque data type. In computer science, an opaque data type is a data type whose concrete data structure is not defined in an interface. This enforces information hiding, since its values can only be manipulated by calling subroutines that have access to the missing information. The concrete representation of the type is hidden from its users ...

  9. Plain text - Wikipedia

    en.wikipedia.org/wiki/Plain_text

    According to The Unicode Standard: [1] "Plain text is a pure sequence of character codes; plain Un-encoded text is therefore a sequence of Unicode character codes. In contrast, styled text, also known as rich text, is any text representation containing plain text plus added information such as a language identifier, font size, color, hypertext ...