test/aliasing: Add a few more colour combinations.

In particular, compare red against its inverse, cyan. Etc.

4 files changed, 5 insertions, 1 deletions

diff --git a/test/aliasing.c b/test/aliasing.c
index 2b8d666d9..78a6d0310 100644
--- a/test/aliasing.c
+++ b/test/aliasing.c
@@ -40,7 +40,11 @@ static const  struct color {
     { 0, 0, 0 },
     { 1, 0, 0 },
     { 0, 1, 0 },
-    { 0, 0, 1 }
+    { 0, 0, 1 },
+    { 1, 1, 0 },
+    { 0, 1, 1 },
+    { 1, 0, 1 },
+    { .5, .5, .5 },
 };
 #define NUM_COLORS (sizeof (color) / sizeof (color[0]))
 #ifndef MAX
diff --git a/test/aliasing.image16.ref.png b/test/aliasing.image16.ref.png
index 8fabbc5f7..c76333337 100644
--- a/test/aliasing.image16.ref.png
+++ b/test/aliasing.image16.ref.png
diff --git a/test/aliasing.ref.png b/test/aliasing.ref.png
index 6a007762f..00ddacbad 100644
--- a/test/aliasing.ref.png
+++ b/test/aliasing.ref.png
diff --git a/test/aliasing.xlib.ref.png b/test/aliasing.xlib.ref.png
index 3fd8c0718..696611dc8 100644
--- a/test/aliasing.xlib.ref.png
+++ b/test/aliasing.xlib.ref.png