Well, by dint of explaination, “Small religious paintings” are obviously ICONS. 
Oh, thank you!
[Ubergeek comment]
Nah, he only has to justify his existence if he makes a celebrity guest appearance in a Black Widowers story.
[/UGC]
Okay, “FTB enabled,” that’s good. I just finished Hogfather last night and now I get it. Well, I know what FTB stands for, but I don’t get the modern equivalent…
I think it’s just a riff on TLAs (Three Letter Abbreviations) abounding in the field of computing.