diff --git a/doc/formula.png b/doc/formula.png index 3bf7404..cefb454 100644 Binary files a/doc/formula.png and b/doc/formula.png differ diff --git a/doc/logo.png b/doc/logo.png index c74875e..117ebcf 100644 Binary files a/doc/logo.png and b/doc/logo.png differ