COLORLIB file

The .colorlib file is a special binary file format designed for the color library specifically.

File specification

Extension

• .colorlib

Byte order

• Little-endian

Data types

• string: length prefixed string in UTF-8 encoding, the prefix contains the encoded length as a 7-bit encoded unsigned integer
• byte: 8-bit unsigned integer
• uint16: 16-bit unsigned integer
• uint32: 32-bit unsigned integer
• single: 32-bit floating point number

Structure

// overall file
ColorLibrary {
    string          header signature            // always "MRC color library"
    uint16          file version
    string          LibraryName
    uint16          padding                     // always 0

    uint16          nCategories
    ColorCategory   Categories[nCategories]

    uint32          EOF signature               // always 0
}

// category
ColorCategory {
    string          CategoryName
    uint16          nColors
    ColorItem       Colors[nColors]
}

// color
ColorItem {
    string          ColorName
    byte            Format                      // 0: sRGB 8-bit, 1: sRGB, 2: linear RGB
    byte/single     Red                         // byte for Format = 0, single otherwise
    byte/single     Green                       // byte for Format = 0, single otherwise
    byte/single     Blue                        // byte for Format = 0, single otherwise
}