update
update
compatibility with  2.2.3
compatibility with  2.2.3
compatibility with  2.2.3
compatibility with  2.2.3: color.parse
compatibility with  2.2.3: color.parse.last
compatibility with  2.2.3: Gdk::Gravity
compatibility with  2.2.3
compatibility with  2.2.3
test gtk3
update
update
print gems used
update
update