Cloud9 IDE Themes not switching -

i'm having problems cloud 9 ide. trying out different themes, when stopped changing themes properly. i've tried lot of things, stands, part changes editor. terminal, file tree, , menus stuck on 1 theme. has encountered problem , found way fix it? in advance help.

try adding url param ?reset=1 workspace url. reset theme (and cloud9 settings such keybindings etc) default can change again.