-static const char *font = "monospace:size=9";
-static const char *background = "#FFFFFF";
-static const char *foreground = "#2E3436";
-static const char *selbackground = "#3584E4";
-static const char *selforeground = "#FFFFFF";
-static const char *separator = "#CDC7C2";
-static const char *border = "#E6E6E6";
-static int width = 130;
-static int itemborder = 4;
-static int menuborder = 1;
-static int separatorsize = 1;
+/* font */
+static const char *font = "monospace:size=9"; /* for regular items */
+
+/* colors */
+static const char *background_color = "#FFFFFF";
+static const char *foreground_color = "#2E3436";
+static const char *selbackground_color = "#3584E4";
+static const char *selforeground_color = "#FFFFFF";
+static const char *separator_color = "#CDC7C2";
+static const char *border_color = "#E6E6E6";
+
+/* sizes in pixels */
+static int width_pixels = 130; /* minimum width of a menu */
+static int padding_pixels = 4; /* padding around label in a item */
+static int border_pixels = 1; /* menu border */
+static int separator_pixels = 3; /* space around separator */
+
+/* geometry of the right-pointing isoceles triangle for submenus */
+static const int triangle_width = 3;
+static const int triangle_height = 7;