Help Strange font after upgrade

[warthog01]

My htc One has just been upgraded to Lollipop and I note that all the descriptive text (such as the snippets of emails , unread counts on icons, etc) is showing up as outline only as on attachment. I cannot find a setting which allows me to modify this although I have tried a number of different fonts and also looked for some means of editing on both Android settings and my Nova launcher as well. I'm sure there's a setting I can use SOMEWHERE, but so far I'm unable to find it. Any ideas out there?

Thanks