Yes, they show up fine on 7.9 with Oracles JRE1.8.0_201.
I downloaded NotoSansCJKsc fonts and installed them by double-click. But the problem still exists. And I restarted the gateway service, uninstalled and reinstalled the designer launcher, uninstalled and reinstalled Ignition 8.0. But it still didn't work.
I think maybe I should put these font files in a directory instead of just installing them. So I found a directory named "C:\Program Files\Inductive Automation\Ignition\lib\runtime\jre-win\lib\fonts"
where contains serveral .ttf files as well as the directory "C:\Program Files\Inductive Automation\Ignition\lib\runtime\jre-win\lib\fonts\fallback"
. I'm not sure if I should put the NotoSansCJKsc fonts there because I found it still didn't work when I did this.
One more thing, what I download is the otf edition as there is no ttf edition for the NotoSansCJKsc fonts. So I'm totally confused.