diff --git a/img/eittlanda/cons-feature-tree.png b/img/eittlanda/cons-feature-tree.png
index eff55a2..98c5dc4 100644
Binary files a/img/eittlanda/cons-feature-tree.png and b/img/eittlanda/cons-feature-tree.png differ
diff --git a/img/nyqy/basic-syntax.png b/img/nyqy/basic-syntax.png
new file mode 100644
index 0000000..fa469fe
Binary files /dev/null and b/img/nyqy/basic-syntax.png differ
diff --git a/img/nyqy/basic-syntax.svg b/img/nyqy/basic-syntax.svg
deleted file mode 100644
index d412819..0000000
--- a/img/nyqy/basic-syntax.svg
+++ /dev/null
@@ -1,207 +0,0 @@
-
-
-
-
-
diff --git a/img/nyqy/consonant-feature-tree.png b/img/nyqy/consonant-feature-tree.png
new file mode 100644
index 0000000..ba222cc
Binary files /dev/null and b/img/nyqy/consonant-feature-tree.png differ
diff --git a/img/nyqy/consonant-feature-tree.svg b/img/nyqy/consonant-feature-tree.svg
deleted file mode 100644
index c897113..0000000
--- a/img/nyqy/consonant-feature-tree.svg
+++ /dev/null
@@ -1,237 +0,0 @@
-
-
-
-
-
diff --git a/img/nyqy/vowel-feature-tree.png b/img/nyqy/vowel-feature-tree.png
new file mode 100644
index 0000000..9a9e642
Binary files /dev/null and b/img/nyqy/vowel-feature-tree.png differ
diff --git a/img/nyqy/vowel-feature-tree.svg b/img/nyqy/vowel-feature-tree.svg
deleted file mode 100644
index 88c0632..0000000
--- a/img/nyqy/vowel-feature-tree.svg
+++ /dev/null
@@ -1,237 +0,0 @@
-
-
-
-
-
diff --git a/img/taso/consonant-feature-tree.png b/img/taso/consonant-feature-tree.png
new file mode 100644
index 0000000..4dfc3e7
Binary files /dev/null and b/img/taso/consonant-feature-tree.png differ
diff --git a/img/taso/consonant-feature-tree.svg b/img/taso/consonant-feature-tree.svg
deleted file mode 100644
index 7f811cb..0000000
--- a/img/taso/consonant-feature-tree.svg
+++ /dev/null
@@ -1,747 +0,0 @@
-
-
-
-
-
diff --git a/img/taso/vowel-feature-tree.png b/img/taso/vowel-feature-tree.png
new file mode 100644
index 0000000..16c0394
Binary files /dev/null and b/img/taso/vowel-feature-tree.png differ
diff --git a/img/taso/vowel-feature-tree.svg b/img/taso/vowel-feature-tree.svg
deleted file mode 100644
index 4e5d134..0000000
--- a/img/taso/vowel-feature-tree.svg
+++ /dev/null
@@ -1,417 +0,0 @@
-
-
-
-
-
diff --git a/nyqy.org b/nyqy.org
index 4b48775..c219b8b 100644
--- a/nyqy.org
+++ b/nyqy.org
@@ -216,7 +216,7 @@
(tree-to-dot nyqy-consonants)
#+END_SRC
- #+BEGIN_SRC dot :file img/nyqy/consonant-feature-tree.svg :var input=cons-tree :exports results :eval yes :cache yes
+ #+BEGIN_SRC dot :file img/nyqy/consonant-feature-tree.png :var input=cons-tree :exports results :eval yes :cache yes
$input
#+END_SRC
#+NAME: arbre:cons
@@ -328,7 +328,7 @@
(tree-to-dot nyqy-vowels)
#+END_SRC
- #+BEGIN_SRC dot :file img/nyqy/vowel-feature-tree.svg :var input=vow-tree :exports results :eval yes :cache yes
+ #+BEGIN_SRC dot :file img/nyqy/vowel-feature-tree.png :var input=vow-tree :exports results :eval yes :cache yes
$input
#+END_SRC
#+NAME: arbre:vowels
@@ -729,7 +729,7 @@
(tree-to-dot nyqy-syntax-tree)
#+END_SRC
- #+BEGIN_SRC dot :file img/nyqy/basic-syntax.svg :var input=basic-syntax-tree :exports results :eval yes :cache yes
+ #+BEGIN_SRC dot :file img/nyqy/basic-syntax.png :var input=basic-syntax-tree :exports results :eval yes :cache yes
$input
#+END_SRC
#+NAME: arbre:syntaxe:basique
diff --git a/taso.org b/taso.org
index 342b085..75cb60f 100644
--- a/taso.org
+++ b/taso.org
@@ -126,7 +126,7 @@
(tree-to-dot taso-consonants)
#+END_SRC
- #+BEGIN_SRC dot :file img/taso/consonant-feature-tree.svg :var input=cons-tree :exports results :eval yes :cache yes
+ #+BEGIN_SRC dot :file img/taso/consonant-feature-tree.png :var input=cons-tree :exports results :eval yes :cache yes
$input
#+END_SRC
#+NAME: arbre:cons
@@ -187,7 +187,7 @@
(tree-to-dot taso-vowels)
#+END_SRC
- #+BEGIN_SRC dot :file img/taso/vowel-feature-tree.svg :var input=vowel-tree :exports results :eval yes :cache yes
+ #+BEGIN_SRC dot :file img/taso/vowel-feature-tree.png :var input=vowel-tree :exports results :eval yes :cache yes
$input
#+END_SRC
#+NAME: arbre:cons