clear out some ds_store files
diff --git a/tests/.DS_Store b/tests/.DS_Store
deleted file mode 100644
index 93ddede..0000000
--- a/tests/.DS_Store
+++ /dev/null
Binary files differ
diff --git a/tests/visual_tests/.DS_Store b/tests/visual_tests/.DS_Store
deleted file mode 100644
index f5a2e96..0000000
--- a/tests/visual_tests/.DS_Store
+++ /dev/null
Binary files differ
diff --git a/tests/visual_tests/.gitignore b/tests/visual_tests/.gitignore
index 04bf55b..7d7bcad 100644
--- a/tests/visual_tests/.gitignore
+++ b/tests/visual_tests/.gitignore
@@ -7,3 +7,4 @@
*.synctex.gz
*.lot
*.docx
+.DS_store