This looks like a WebKit-GTK problem. (Ubuntu Software Center uses WebKit-GTK for icon-view listings.) I get the same problem -- two different fonts -- when I copy and paste this into the URL field of the Epiphany or Midori browsers, both of which use WebKit-GTK:
data:text/html,<meta%20http-equiv="Content-Type"%20context="text/html;%20charset="utf-8">办公%20全局访问
I do not get the same problem in either Chromium (which I think uses its own copy of WebKit) or Firefox (which uses Gecko).
This looks like a WebKit-GTK problem. (Ubuntu Software Center uses WebKit-GTK for icon-view listings.) I get the same problem -- two different fonts -- when I copy and paste this into the URL field of the Epiphany or Midori browsers, both of which use WebKit-GTK: text/html, <meta%20http- equiv=" Content- Type"%20context ="text/ html;%20charset ="utf-8" >办公%20全局访问
data:
I do not get the same problem in either Chromium (which I think uses its own copy of WebKit) or Firefox (which uses Gecko).