Fix invalid headers in PNG files and optimize for size

8 年前 · dadce23a67
--- a/doc/en/code_style.png
+++ b/doc/en/code_style.png
--- a/doc/en/flag_code_style.png
+++ b/doc/en/flag_code_style.png
--- a/doc/en/flag_style.png
+++ b/doc/en/flag_style.png
--- a/hi16-app-kkbswitch.png
+++ b/hi16-app-kkbswitch.png
--- a/hi32-app-kkbswitch.png
+++ b/hi32-app-kkbswitch.png