chrome vs trappings

chrome

noun
  • The basic structural elements used in a graphical user interface, such as window frames and scroll bars, as opposed to the content. 

  • handguns 

  • Chromium, when used to plate other metals. 

verb
  • To plate with chrome. 

  • To treat with a solution of potassium bichromate, as in dyeing. 

trappings

noun
  • Clothing or equipment; that which gives the appearance of something. 

  • Ornamental coverings or harnesses for a horse; caparisons. 

How often have the words chrome and trappings occurred in a corpus of books? (source: Google Ngram Viewer )