diff --git a/extra/spheres/authors.txt b/extra/spheres/authors.txt
new file mode 100644
index 0000000000..f13c9c1e77
--- /dev/null
+++ b/extra/spheres/authors.txt
@@ -0,0 +1 @@
+Joe Groff
diff --git a/extra/spheres/summary.txt b/extra/spheres/summary.txt
new file mode 100644
index 0000000000..fd97091e33
--- /dev/null
+++ b/extra/spheres/summary.txt
@@ -0,0 +1 @@
+Draw pixel-perfect spheres using GLSL shaders
\ No newline at end of file
diff --git a/extra/spheres/tags.txt b/extra/spheres/tags.txt
new file mode 100644
index 0000000000..2e6040bd16
--- /dev/null
+++ b/extra/spheres/tags.txt
@@ -0,0 +1,2 @@
+opengl
+glsl