In HTML, "Gray" is specifically reserved for the 128 triplet (50% gray). One notable difference between X11 and W3C is the case of "Gray" and its variants. The present W3C list is a superset of the 16 " VGA colors" defined in HTML 3.2 and CSS level 1. The W3C specifications SVG and CSS level 3 module Color eventually adopted the X11 list with some changes. The first versions of Mosaic and Netscape Navigator used the X11 colors as the basis for the web colors list, as both were originally X applications. They are usually matched insensitive of case and the X Server source code contains spaced aliases for most entries this article uses spaces and uppercase initials except where variants with spaces are not specified in the actual code.Ĭlashes between web and X11 colors in the CSS color scheme In some applications multipart names are written with spaces, in others joined together, often in camel case. The project was running DEC VT240 terminals at the time, so would have worked to that device. Thomas (who added colors based on a set of 72 Crayola crayons he had on hand) and Jim Fulton (who reconciled contributions to produce the X11R4 list). Approximately the full list as is available today shipped with X11R4 on 29 January 1989, with substantial additions by Paul Ravelling (who added colors based on Sinclair Paints samples), John C. The same list was in X11R1 on 18 September 1987. The list first shipped with X10 release 3 (X10R3) on 7 June 1986, having been checked into RCS by Jim Gettys in 1985. The optional module xorg/app/rgb contains the stand-alone rgb.txt file. Īs of X.Org Release 7.4 rgb.txt is no longer included in the roll up release, and the list is built directly into the server. In earlier releases of X11 (prior to the introduction of Xcms), server implementors were encouraged to modify the RGB values in the reference color database to account for gamma correction. Despite this, graphic designers and others got used to them, making it practically impossible to introduce a different list. The list does not show continuity either in selected color values or in color names, and some color triplets have multiple names. Ĭolor names are not standardized by Xlib or the X11 protocol. The web colors list is descended from it but differs for certain color names. It was traditionally shipped with every X11 installation, hence the name, and is usually located in /lib/X11/rgb.txt. In computing, on the X Window System, X11 color names are represented in a simple text file, which maps certain strings to RGB color values.
0 Comments
Leave a Reply. |