diff --git a/gen/letters/gen.py b/gen/letters/gen.py
index 3e81f9d..8018c93 100755
--- a/gen/letters/gen.py
+++ b/gen/letters/gen.py
@@ -24,10 +24,9 @@ def clean(fname):
 		sys.exit(1)
 	subprocess.call(["convert", "-trim", "screenshot.png", "screenshot.png"])
 	data[i] = base64.b64encode(open("screenshot.png", "rb").read()).decode("utf-8")
-	sys.exit(0)
 	clean("index.html")
 	clean("screenshot.png")
 
 dst = "../src/fonts/font_default.json"
-open(dst, "wt").write(json.dumps(data))
+open(dst, "wt").write(json.dumps(data, ensure_ascii = False))
 print ("data written to " + dst)
diff --git a/src/lib.rs b/src/lib.rs
index 233306b..26e5b73 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -57,7 +57,7 @@ extern crate serde_json;
 
 mod audio;
 pub mod filters;
-mod fonts;
+pub mod fonts;
 mod images;
 mod samples;
 
@@ -113,7 +113,6 @@ pub struct RngCaptcha<T> {
 }
 
 impl<T: rand::Rng + rand::RngCore> RngCaptcha<T> {
-
     pub fn from_rng(rng: T) -> RngCaptcha<T> {
         // TODO fixed width + height
         let w = 400;