Checkboxes now showing in 2.3.0B4

[ndahiya]

Hi,

Did a clean install of 2.3.0 beta 4. None of the checkboxes in admin control panel are visible. have tried this with firefox, chrome, and edge.
See attached pics for a sample page. i see the same issue everywhere.

Just for comparison, did a clean install of 2.2.5, and they work just fine.
Checkboxes now showing in 2.3.0B4

free plugins
minecraft paid for free
mcmarket
mc-market
free minecraft paid plugins
free minecraft plugins
spigotmc
SpigotMC
aac free
ewg free
Minecraft Premium Plugins
ewg free download
litebans free
epicworldgenerator free
free schematics
leaked schematics minecraft
schematics
schematics leaked
schematics free
minecraft schematics free
paid minecraft schematics free
paid minecraft schematics for free
free cracked plugins
free cracked minecraft plugins
plugins
featherboard download
featherboard plugin download
antiaura download
xenforo leaked
xenforo for free
xenforo addons