diff --git a/images/reference/google.svg b/images/reference/google.svg
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diff --git a/images/reference/google_plus.png b/images/reference/google_plus.png
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index 00000000..e098e829
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diff --git a/images/reference/index.md b/images/reference/index.md
index 9f5c6113..4c21693a 100644
--- a/images/reference/index.md
+++ b/images/reference/index.md
@@ -29,11 +29,11 @@ Where possible this links to the organisation's brand guidelines page.
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| https://developer.spotify.com/design/ |
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| https://www.snap.com/en-US/brand-guidelines/ |
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| http://www.turnerduckworth.com/work/amazon/ |
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|
| https |
-|
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| https |
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| https |
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| https |
-|
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| https |
+|
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| https://steamcdn-a.akamaihd.net/steamcommunity/public/images/steamworks_docs/english/Steam_Guidelines_20170524.pdf |
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|
| https://developers.google.com/identity/branding-guidelines|
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| https://plus.google.com/+googleplus |
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| https://wechat.design/?locale=en_US |
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| https://www.youtube.com/intl/en/yt/about/brand-resources/#logos-icons-colors |
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| https |
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| https |
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|
| https |
diff --git a/images/reference/steam.svg b/images/reference/steam.svg
new file mode 100644
index 00000000..0e3d8e1c
--- /dev/null
+++ b/images/reference/steam.svg
@@ -0,0 +1,73 @@
+
+
+
+
\ No newline at end of file
diff --git a/images/reference/wechat.svg b/images/reference/wechat.svg
new file mode 100644
index 00000000..9b22049c
--- /dev/null
+++ b/images/reference/wechat.svg
@@ -0,0 +1,153 @@
+
+
+
+
diff --git a/images/reference/youtube.svg b/images/reference/youtube.svg
new file mode 100644
index 00000000..0231b4da
--- /dev/null
+++ b/images/reference/youtube.svg
@@ -0,0 +1,67 @@
+
+
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\ No newline at end of file