diff --git a/.gitignore b/.gitignore
index 507ce3d..a7e0f65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,6 @@ quirks/*
 *.pkl
 Pesterchum.dmg
 *.md.backup
-subscript.txt
\ No newline at end of file
+subscript.txt
+package-lock.json
+package.json
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0dc46c6..8d5d80f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Changelog
 (This document uses YYYY-MM-DD as per ISO 8601)
 
+## [v2.1.2]
+
+### Changed
+- Made file capitalization consistent for a few files. (.PNG --> .png), because some file systems are queasy on that. (See https://superuser.com/questions/881804/case-sensitive-file-extensions-in-windows-and-linux) 
+
+
 ## [v2.1.1] - 2021-4-12
 
 ### Fixed
diff --git a/themes/paperchum/chumbg.PNG b/themes/paperchum/chumbg.png
similarity index 100%
rename from themes/paperchum/chumbg.PNG
rename to themes/paperchum/chumbg.png
diff --git a/themes/paperchum/othertabbg.PNG b/themes/paperchum/othertabbg.png
similarity index 100%
rename from themes/paperchum/othertabbg.PNG
rename to themes/paperchum/othertabbg.png
diff --git a/themes/paperchum/scrollhandle.PNG b/themes/paperchum/scrollhandle.png
similarity index 100%
rename from themes/paperchum/scrollhandle.PNG
rename to themes/paperchum/scrollhandle.png
diff --git a/themes/paperchum/selectedbg.PNG b/themes/paperchum/selectedbg.png
similarity index 100%
rename from themes/paperchum/selectedbg.PNG
rename to themes/paperchum/selectedbg.png
diff --git a/themes/paperchum/tabbg.PNG b/themes/paperchum/tabbg.png
similarity index 100%
rename from themes/paperchum/tabbg.PNG
rename to themes/paperchum/tabbg.png
diff --git a/themes/paperchum/timeslider.PNG b/themes/paperchum/timeslider.png
similarity index 100%
rename from themes/paperchum/timeslider.PNG
rename to themes/paperchum/timeslider.png
diff --git a/themes/steamchum/chumbg.PNG b/themes/steamchum/chumbg.png
similarity index 100%
rename from themes/steamchum/chumbg.PNG
rename to themes/steamchum/chumbg.png
diff --git a/themes/steamchum/mood base.PSD b/themes/steamchum/mood base.psd
similarity index 100%
rename from themes/steamchum/mood base.PSD
rename to themes/steamchum/mood base.psd
diff --git a/themes/steamchum/othertabbg.PNG b/themes/steamchum/othertabbg.png
similarity index 100%
rename from themes/steamchum/othertabbg.PNG
rename to themes/steamchum/othertabbg.png
diff --git a/themes/steamchum/scrollhandle.PNG b/themes/steamchum/scrollhandle.png
similarity index 100%
rename from themes/steamchum/scrollhandle.PNG
rename to themes/steamchum/scrollhandle.png
diff --git a/themes/steamchum/selectedbg.PNG b/themes/steamchum/selectedbg.png
similarity index 100%
rename from themes/steamchum/selectedbg.PNG
rename to themes/steamchum/selectedbg.png
diff --git a/themes/steamchum/tabbg.PNG b/themes/steamchum/tabbg.png
similarity index 100%
rename from themes/steamchum/tabbg.PNG
rename to themes/steamchum/tabbg.png
diff --git a/themes/steamchum/timeslider.PNG b/themes/steamchum/timeslider.png
similarity index 100%
rename from themes/steamchum/timeslider.PNG
rename to themes/steamchum/timeslider.png