diff --git a/doc/texinfo/opt_general.texi b/doc/texinfo/opt_general.texi
index 8f1d6df6ee8229a0d298e63839cf334ed88fa451..b2abacc937c067a91cc32a2724eb23354c50e95d 100644
--- a/doc/texinfo/opt_general.texi
+++ b/doc/texinfo/opt_general.texi
@@ -164,6 +164,11 @@ Number of tics on the Z-axis@*
 Default value: @code{5}@*
 Saved in: @code{General.OptionsFileName}
 
+@item General.BackgroundGradient
+Draw background gradient (0=none, 1=vertical, 2=horizontal)@*
+Default value: @code{0}@*
+Saved in: @code{General.OptionsFileName}
+
 @item General.Clip0
 Enable clipping plane 0 (Geometry=2^0, Mesh=2^1, View[i]=2^(2+i))@*
 Default value: @code{0}@*
@@ -849,6 +854,11 @@ Background color@*
 Default value: @code{@{0,0,0@}}@*
 Saved in: @code{General.OptionsFileName}
 
+@item General.Color.BackgroundGradient
+Background gradient color@*
+Default value: @code{@{0,0,125@}}@*
+Saved in: @code{General.OptionsFileName}
+
 @item General.Color.Foreground
 Foreground color@*
 Default value: @code{@{255,255,255@}}@*