Several improvements (#9)

* fix icon filename

* update pp2d to fix preview problem

* several improvements:
- rely on a single header for simple/common headers
- cleaned up main by putting the interface drawing function in its own file
- load previews from .zip themes (may cause some loading times when launching
- only need 1 shuffle image thanks to pp2d's blending abilities

* not needed anymore

* fix preview color and position

* forgot

* add proper icon loading
thanks steveice10 for bannertool which this was pretty much taken from

* only add proper themes to the list

* add slightly more space between the icon and the name

* not monospace, the little movement every blink is annoying

* fix typo

source/fs.c

@@ -24,12 +24,9 @@
 *         reasonable ways as different from the original version.
 */
 
-#include <3ds.h>
-#include <string.h>
-#include <stdlib.h>
-
 #include "fs.h"
 #include "unicode.h"
+
 #include "minizip/unzip.h"
 
 Result open_archives(void)
@@ -80,6 +77,7 @@ Result open_archives(void)
     theme.data = themePath;
     retValue = FSUSER_OpenArchive(&ArchiveThemeExt, ARCHIVE_EXTDATA, theme);    
     if(R_FAILED(retValue)) return retValue;
+    
     romfsInit();
     return 0;
 }
@@ -98,27 +96,6 @@ Result close_archives(void)
     return 0;
 }
 
-int get_number_entries(char *path)
-{
-    int count = 0;
-    Handle dir_handle;
-    Result res = FSUSER_OpenDirectory(&dir_handle, ArchiveSD, fsMakePath(PATH_ASCII, path));
-    if (R_FAILED(res)) return -1;
-
-    bool done = false;
-    while (!done)
-    {
-        FS_DirectoryEntry *entry = malloc(sizeof(FS_DirectoryEntry));
-        u32 entries_read = 0;
-        FSDIR_Read(dir_handle, &entries_read, 1, entry);
-        free(entry);
-        if (entries_read) count++;
-        else if (!entries_read) break;
-    }
-    FSDIR_Close(dir_handle);
-    return count;
-}
-
 u64 file_to_buf(FS_Path path, FS_Archive archive, char** buf)
 {
     Handle file;