如下图所示,思维导图软件Freeplane在GNU/Linux下默认的界面渲染效果是很差的,即便将Preferences → Appearance → Antialias设置为Antialias all亦如此
aaarticlea/png;base64,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" alt="" width="500" height="71" />
查了一下,发现是Java的反锯齿效果没有打开的缘故。为此,需要在~/.bashrc对_JAVA_OPTIONS环境变量予以设置:
export _JAVA_OPTIONS="-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dsun.java2d.xrender=true $_JAVA_OPTIONS"
然后在命令行执行source ~/.bashrc,重启Freeplane,显示效果就完美了:
aaarticlea/png;base64,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" alt="" width="500" height="59" />