[LyX/2.2.x] In mathed, require xcolor instead of color when appropriate

[Enrico Forestieri]

commit f8d3a8860b05ec29f5e13e7c9737bdce64a3da20
Author: Enrico Forestieri <for...@lyx.org>
Date:   Thu Oct 27 03:18:29 2016 +0200

    In mathed, require xcolor instead of color when appropriate
    
    Fixes bug #10417.
---
 src/mathed/InsetMathColor.cpp |   22 ++++++++++++++++++++--
 status.22x                    |    2 ++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/mathed/InsetMathColor.cpp b/src/mathed/InsetMathColor.cpp
index c50f613..0a6d0aa 100644
--- a/src/mathed/InsetMathColor.cpp
+++ b/src/mathed/InsetMathColor.cpp
@@ -74,8 +74,26 @@ static bool normalcolor(docstring const & color)
 void InsetMathColor::validate(LaTeXFeatures & features) const
 {
        InsetMathNest::validate(features);
-       if (!normalcolor(color_))
-               features.require("color");
+       if (!normalcolor(color_)) {
+               switch (lcolor.getFromLaTeXName(to_utf8(color_))) {
+                       case Color_brown:
+                       case Color_darkgray:
+                       case Color_gray:
+                       case Color_lightgray:
+                       case Color_lime:
+                       case Color_olive:
+                       case Color_orange:
+                       case Color_pink:
+                       case Color_purple:
+                       case Color_teal:
+                       case Color_violet:
+                               features.require("xcolor");
+                               break;
+                       default:
+                               features.require("color");
+                               break;
+               }
+       }
 }
 
 
diff --git a/status.22x b/status.22x
index c10ae23..294480a 100644
--- a/status.22x
+++ b/status.22x
@@ -97,6 +97,8 @@ What's new
 
 - Fix display of Arabic text when compiling with Qt5 (bug 10436).
 
+- Allow using colors supported by xcolor inside mathed (bug 10417).
+
 
 * INTERNALS