Scribus supports most major bitmap formats, including TIFF, JPEG, and PSD. Vector drawings can be imported or directly opened for editing. The long list of supported formats includes Encapsulated PostScript, SVG, Adobe Illustrator, and Xfig. Professional type/image-setting features include CMYK colors and ICC color management. It has a built-in scripting engine using Python. High-level printing is achieved using its own internal level 3 PostScript driver, including support for font embedding and sub-setting with TrueType, Type 1, and OpenType fonts. The internal driver supports full Level 2 PostScript constructs and a large subset of Level 3 constructs. PDF support includes transparency, encryption, and a large set of the PDF 1.5 specification including layers (OCG), as well as PDF/X-3, including interactive PDFs form fields, annotations, and bookmarks. The current file format, called SLA, is XML. Text can be imported from OpenDocument (ODT) text documents (such as from LibreOffice Writer), XML ( Writer's SXW files), Microsoft Word's DOC, PDB, and HTML formats (although some limitations apply). ODT files can typically be imported along with their paragraph styles, which are then created in Scribus. HTML tags which modify text, such as bold and italic, are supported. Word and PDB documents are only imported as plain text. Forthcoming Scribus 1.6 (by way of Scribus 1.5 development branch) ScribusGenerator is a mail merge-like extension to Scribus.