diff --git a/WORKSPACE b/WORKSPACE
index d9f618629..b935a70d7 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -111,14 +111,11 @@ new_local_repository(
 
 http_archive(
     name = "android_opencv",
-    sha256="cd7e5d5ec76eeddadf36a1cfe5197129328e80287d4d198c169e090421f838ba",
+    sha256="056b849842e4fa8751d09edbb64530cfa7a63c84ccd232d0ace330e27ba55d0b",
     build_file = "@//third_party:opencv_android.BUILD",
     strip_prefix = "OpenCV-android-sdk",
     type = "zip",
-    urls = [
-        "https://sourceforge.net/projects/opencvlibrary/files/4.0.1/opencv-4.0.1-android-sdk.zip/download",
-        "https://github.com/opencv/opencv/releases/download/4.1.0/opencv-4.1.0-android-sdk.zip",
-    ],
+    url = "https://github.com/opencv/opencv/releases/download/4.1.0/opencv-4.1.0-android-sdk.zip",
 )
 
 RULES_JVM_EXTERNAL_TAG = "2.2"
diff --git a/mediapipe/calculators/core/BUILD b/mediapipe/calculators/core/BUILD
index e4fdd0bed..bdf655805 100644
--- a/mediapipe/calculators/core/BUILD
+++ b/mediapipe/calculators/core/BUILD
@@ -132,9 +132,7 @@ cc_library(
 cc_library(
     name = "previous_loopback_calculator",
     srcs = ["previous_loopback_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:packet",
@@ -149,9 +147,7 @@ cc_library(
 cc_library(
     name = "real_time_flow_limiter_calculator",
     srcs = ["real_time_flow_limiter_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:packet",
diff --git a/mediapipe/calculators/image/BUILD b/mediapipe/calculators/image/BUILD
index 9a3bbbe4d..2221c698d 100644
--- a/mediapipe/calculators/image/BUILD
+++ b/mediapipe/calculators/image/BUILD
@@ -173,9 +173,7 @@ cc_library(
 cc_library(
     name = "set_alpha_calculator",
     srcs = ["set_alpha_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":set_alpha_calculator_cc_proto",
         "//mediapipe/framework:calculator_options_cc_proto",
@@ -294,9 +292,7 @@ cc_library(
 cc_library(
     name = "recolor_calculator",
     srcs = ["recolor_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":recolor_calculator_cc_proto",
         "//mediapipe/framework:calculator_framework",
diff --git a/mediapipe/calculators/tflite/BUILD b/mediapipe/calculators/tflite/BUILD
index 65a955cad..374f0f11e 100644
--- a/mediapipe/calculators/tflite/BUILD
+++ b/mediapipe/calculators/tflite/BUILD
@@ -112,9 +112,7 @@ mediapipe_cc_proto_library(
 cc_library(
     name = "ssd_anchors_calculator",
     srcs = ["ssd_anchors_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":ssd_anchors_calculator_cc_proto",
         "//mediapipe/framework:calculator_framework",
@@ -128,9 +126,7 @@ cc_library(
 cc_library(
     name = "tflite_custom_op_resolver_calculator",
     srcs = ["tflite_custom_op_resolver_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":tflite_custom_op_resolver_calculator_cc_proto",
         "//mediapipe/framework:calculator_framework",
diff --git a/mediapipe/calculators/util/BUILD b/mediapipe/calculators/util/BUILD
index b9f0875c8..44eb4334a 100644
--- a/mediapipe/calculators/util/BUILD
+++ b/mediapipe/calculators/util/BUILD
@@ -220,9 +220,7 @@ cc_test(
 cc_library(
     name = "annotation_overlay_calculator",
     srcs = ["annotation_overlay_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":annotation_overlay_calculator_cc_proto",
         "//mediapipe/framework:calculator_options_cc_proto",
@@ -251,9 +249,7 @@ cc_library(
 cc_library(
     name = "detection_label_id_to_text_calculator",
     srcs = ["detection_label_id_to_text_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         ":detection_label_id_to_text_calculator_cc_proto",
         "//mediapipe/framework/formats:detection_cc_proto",
@@ -357,9 +353,7 @@ cc_test(
 cc_library(
     name = "detection_letterbox_removal_calculator",
     srcs = ["detection_letterbox_removal_calculator.cc"],
-    visibility = [
-        "//visibility:public",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework/formats:detection_cc_proto",
diff --git a/mediapipe/docs/visualizer.md b/mediapipe/docs/visualizer.md
index 250bd9b21..e35a0dc7c 100644
--- a/mediapipe/docs/visualizer.md
+++ b/mediapipe/docs/visualizer.md
@@ -1,11 +1,12 @@
 ## Visualizing MediaPipe Graphs
 
 -   [Working within the editor](#working-within-the-editor)
--   [Understanding the Graph](#understanding-the-graph)
+-   [Understanding the graph](#understanding-the-graph)
 
 To help users understand the structure of their calculator graphs and to
 understand the overall behavior of their machine learning inference pipelines,
-we have built the [MediaPipe Visualizer](https://viz.mediapipe.dev/) that is available online.
+we have built the [MediaPipe Visualizer](https://viz.mediapipe.dev/)
+that is available online.
 
 *   A graph view allows users to see a connected calculator graph as expressed
     through a graph configuration that is pasted into the graph editor or
@@ -58,4 +59,3 @@ The visualizer graph shows the connections between calculator nodes.
 
     ![Special nodes](./images/special_nodes.png){width="350"}
     ![Special nodes](./images/special_nodes_code.png){width="350"}
-