Update JTattoo to the latest version
JTattoo had a few more releases since the 1.6.9 (which is in use in Spark). Latest version is 1.6.11 (October 2014) http://www.jtattoo.net/Download.html
Although it looks like simply dropping the new jar doesn't work.
Done by Guus in the process of mavenizing Spark.
I think you're right! I just noticed a few odd things too with just dropping the 1.6.10 jar. nothing major..larger than normal check box, odd app name placement in the application bar, etc.. oh well
Not sure. I have checked Jason's patch for 1.6.9 and he has changed tons of lines and files. So maybe it involves more than just dropping new jars (there is also a src folder of tattoo included).
my guess this is a bug in jtattoo. I just tried with 1.6.10, and it works, so maybe something broke in 1.6.11