Graphic Packages with preview function in Lyx

Hello! I would like to create graphics in Lyx and was wondering which the packages are that can be previewed in lyx besides Xy-pic, because I find the "Xy-Pic Reference Manual" to be written very poorly. Does anybody know an other Manual? Thanks in advance! Best regards, TJ

Xy-Pic problems with colors

Hello! I hope someone knows how to solve the following problem! I'd like to change the color of one of the lines and want to make it bold as well. My code: \xy <1cm,0cm>: (0,0) ;(6,0) [EMAIL PROTECTED] , (0,0) ;(0,6) [EMAIL PROTECTED] , (0,0) ;(0,3) [EMAIL PROTECTED] , (3,0) ;(6,3) [EMAIL P

xcolor package vs. beamer class

Hallo! I am using a beamer class in Lyx and have a problem with applying the xcolor package to it. In Latex the command is "\documentclass[xcolor=x11names]{beamer}". How can I make it work in Lyx? Thanks! Best regards, TJ

Compatibiliy issue with beamer-class and xcolor package

Hello! In Lyx I chose a beamer class to be my "document class". Now I would like to use the xcolor package, hence I entered the following into the preamble: \usepackage[x11names]{xcolor} Unfortunately I get the following message once I try to compile my file: \definecolor {darkgreen}{cmyk