diff --git a/ccc.c b/ccc.c
index a188ae6..dc70ecc 100644
--- a/ccc.c
+++ b/ccc.c
@@ -55,10 +55,6 @@ unsigned int focus = 0;
 long sel_file = 0;
 bool file_picker = false;
 bool to_open_file = false;
-bool dirs_size = DIRS_SIZE;
-bool show_hidden = SHOW_HIDDEN;
-bool file_details = SHOW_DETAILS;
-bool show_icons = SHOW_ICONS;
 char *argv_cp;
 char *cwd;
 char *p_cwd; /* previous cwd */
@@ -215,8 +211,8 @@ int main(int argc, char **argv)
 
 			/* jump up */
 			case CTRLU:
-				if ((sel_file - JUMP_NUM) > 0)
-					sel_file -= JUMP_NUM;
+				if ((sel_file - jump_num) > 0)
+					sel_file -= jump_num;
 				else
 					sel_file = 0;
 
@@ -234,8 +230,8 @@ int main(int argc, char **argv)
 
 			/* jump down */
 			case CTRLD:
-				if ((sel_file + JUMP_NUM) < (files->length - 1))
-					sel_file += JUMP_NUM;
+				if ((sel_file + jump_num) < (files->length - 1))
+					sel_file += jump_num;
 				else
 					sel_file = (files->length - 1);
 
@@ -319,7 +315,7 @@ int main(int argc, char **argv)
 
 			/* toggle file details */
 			case 'i':
-				file_details = !file_details;
+				show_details = !show_details;
 				change_dir(cwd, 0, 0);
 				break;
 
@@ -408,7 +404,7 @@ void handle_sigwinch(int ignore)
 		cleanup();
 		die("ccc: Terminal size needs to be at least 80x24");
 	}
-	half_width = cols / 2 + WINDOW_OFFSET;
+	half_width = cols / 2 + window_offset;
 	list_files();
 }
 
@@ -677,10 +673,10 @@ void add_file_stat(char *filename, char *path, int ftype)
 			bytes = total_dir_size;
 		}
 	}
-	/* 4 before decimal + 1 dot + DECIMAL_PLACES (after decimal) +
+	/* 4 before decimal + 1 dot + decimal_place (after decimal) +
 	   unit length (1 for K, 3 for KiB, taking units[1] as B never changes) + 1 space + 1 null */
 	static const char* units[] = {"B", "K", "M", "G", "T", "P"};
-	int size_size = 4 + 1 + DECIMAL_PLACES + strlen(units[1]) + 1 + 1;
+	int size_size = 4 + 1 + decimal_place + strlen(units[1]) + 1 + 1;
 	char *size = memalloc(size_size);
 	int unit = 0;
 	while (bytes > 1024) {
@@ -691,7 +687,7 @@ void add_file_stat(char *filename, char *path, int ftype)
 	if (bytes == (unsigned int) bytes) {
 		sprintf(size, "%d%s", (unsigned int) bytes, units[unit]);
 	} else {
-		sprintf(size, "%.*f%s", DECIMAL_PLACES, bytes, units[unit]);
+		sprintf(size, "%.*f%s", decimal_place, bytes, units[unit]);
 	}
 	/* get file mode string */
 	char *mode_str = get_file_mode(file_stat.st_mode);
@@ -789,7 +785,7 @@ void list_files(void)
 			}
 		}
 		/* print the actual filename and stats */
-		char *line = get_line(files, i, file_details, show_icons);
+		char *line = get_line(files, i, show_details, show_icons);
 		int color = files->items[i].color;
 		/* check is file marked for action */
 		bool is_marked = arraylist_search(marked, files->items[i].path, false) != -1;
diff --git a/config.h b/config.h
index 79750de..b2ac4ee 100644
--- a/config.h
+++ b/config.h
@@ -1,11 +1,8 @@
+#define PATH_MAX 4096 /* Max length of path */
 /* Settings */
-#define PH 1                /* panel height */
-#define JUMP_NUM 14         /* how long ctrl + u/d jump are */
-#define PATH_MAX 4096       /* max length of the path */
-#define DECIMAL_PLACES 1    /* how many decimal places show size with */
-
-/* Size units */
-static const char* units[] = {"B", "K", "M", "G", "T", "P"};
+static int panel_height = 1; /* panel height */
+static int jump_num = 14; /* Length of ctrl + u/d jump */
+static int decimal_place = 1; /* Number of decimal places size can be shown */
 
 /* Set width offset for windows:
 +-------------%-------------+
@@ -19,26 +16,26 @@ In COLS:
 0 will make them equal (at the center),
 15 will make files bigger
 -15 will make preview bigger */
-#define WINDOW_OFFSET -30
+static int window_offset = -30;
 
 /* Options */
-#define SHOW_HIDDEN true    /* show hidden files/dotfiles at startup */
-#define SHOW_DETAILS false   /* show file details at startup */
-#define SHOW_ICONS true     /* show file icons at startup */
+static int show_hidden = 1; /* Show hidden files/dotfiles at startup */
+static int show_details = 0; /* Show file details at startup */
+static int show_icons = 1; /* Show file icons at startup */
 
 /* Calculate directories' sizes RECURSIVELY upon entering
    `A` keybind at the startup
  **VERY EXPENSIVE**, **CAN TAKE UP TO A MINUTE IN ROOT** */
-#define DIRS_SIZE false
+static int dirs_size = 0;
 
 /* Default text editor */
-#define EDITOR "nvim"
+static const char *editor = "nvim";
 
 /* File location to write last directory */
-#define LAST_D "~/.cache/ccc/.ccc_d"
+static char last_d[PATH_MAX] = "~/.cache/ccc/.ccc_d";
 
 /* Will create this directory if doesn't exist! */
-#define TRASH_DIR "~/.cache/ccc/trash/"
+static char trash_dir[PATH_MAX]  = "~/.cache/ccc/trash/";
 
 /* Keybindings */
 #define CTRLD 0x04