Diffstat (limited to 'docs/manual/common-usage.txt')
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/manual/common-usage.txt b/docs/manual/common-usage.txt
index 7c7694265f..c7e4568934 100644
@@ -88,6 +88,8 @@ to +make+ or set in the environment:
is the recommended way of setting it.
* +GRAPH_ALT+, if set and non-empty, to use an alternate color-scheme in
+* +GRAPH_OUT+ to set the filetype of generated graphs, either +pdf+ (the
+ default), or +png+.
An example that uses config files located in the toplevel directory and
in your $HOME: