diff --git a/Build/Themes/Dark.ini b/Build/Themes/Dark.ini
index bad841844..e8519bd60 100644
--- a/Build/Themes/Dark.ini
+++ b/Build/Themes/Dark.ini
@@ -257,6 +257,15 @@ Position Setting=fore:#0000FF
 Line Addition=back:#13354A; eolfilled
 Line Removal=fore:#960050; back:#1E0010; eolfilled
 Line Change=fore:#89807D; back:#4C4745; eolfilled
+[Fortran Source Code]
+Comment=italic; fore:#808080
+Keyword=bold; fore:#0080FF
+Function=bold; italic; fore:#00B3FF
+User-Defined Function=bold; italic; fore:#8678FE
+Number=fore:#7C00F9
+Operator=bold; fore:#0AB456
+Label=fore:#FF0080
+Continuation=fore:#D8F766
 [Go Source Code]
 Comment=fore:#008000
 Number=fore:#FF0000
diff --git a/Build/Themes/Obsidian.ini b/Build/Themes/Obsidian.ini
index 2dcff97f6..63fe7ef41 100644
--- a/Build/Themes/Obsidian.ini
+++ b/Build/Themes/Obsidian.ini
@@ -254,6 +254,15 @@ Position Setting=fore:#0000FF
 Line Addition=fore:#002000; back:#80FF80; eolfilled
 Line Removal=fore:#200000; back:#FF8080; eolfilled
 Line Change=fore:#000020; back:#8080FF; eolfilled
+[Fortran Source Code]
+Comment=italic; fore:#808080
+Keyword=bold; fore:#0080FF
+Function=bold; italic; fore:#00B3FF
+User-Defined Function=bold; italic; fore:#8678FE
+Number=fore:#7C00F9
+Operator=bold; fore:#0AB456
+Label=fore:#FF0080
+Continuation=fore:#D8F766
 [Go Source Code]
 Comment=fore:#008000
 Number=fore:#FF0000