Defines a symbol that can be used in place of hard-coded values. [Optional] Imports the symbols from another manifest. [Optional] The symbol is a placeholder for a guid. [Optional] The symbol is a placeholder for an ID. [Optional] The symbol is a placeholder for an arbitrary string. Defines an image that can be referenced by a moniker. [Required] [Minimum: 1] Defines a single image source asset. [Optional] The source will be used only for the the given value. (If specified, this must be the first child of the source) [Optional] The source will be used between the min/max size inclusively. (If specified, this must be the first child of the source) [Optional] The source will be used only for the given width and height. (If specified, this must be the first child of the source) [Optional] The source will be used between the min/max width/height inclusively. (If specified, this must be the first child of the source) [Optional] The source is defined in a native assembly with the given resource ID and type. (If a size[range] or dimension[range] is specified for the source, this, if specified, must appear after other child.) Defines a collection of images that can be returned in a single image strip. [Required] [Minimum: 1] An image in the image strip. The order in the image list determines the order in the generated image strip.