--- a/ThemeCfg.wiki	Tue Apr 17 01:47:57 2018 +0100
+++ b/ThemeCfg.wiki	Tue Apr 17 01:50:13 2018 +0100
@@ -1,11 +1,14 @@
 #summary Structure of the theme.cfg file
 
 = Structure of `theme.cfg` =
+
+== Introduction ==
+The file `theme.cfg` gives the engine the values associated with a certain theme, to complement the graphics. To understand themes in general, start at [Themes]. To learn more about the general file structure of themes, see [ThemeFiles].
+
 <wiki:toc max_depth="3" />
 
 == Syntax ==
-The file `theme.cfg` gives the engine the values associated with a certain theme, to complement the graphics. To understand themes in general, start at [Themes]. To learn more about the general file structure of themes, see [ThemeFiles].
-It is structured with a list of keys, each separated by line breaks. Each key is followed by an equals sign followed a value. The value depends on the key.
+A `theme.cfg` is a text file which is structured with a list of keys, each separated by line breaks. Each key is followed by an equals sign followed a value. Values can be numbers, strings, or comma-separated lists of these.
 
 Example:
 <code>sky = 23, 8, 33