First off, please stop saying "chrome"...none of those Jeep accessories are chrome plated, it's all brushed steel...the pedals are stainless steel.
As for your question, yes the no-name brushed metal inserts on the plastic door sills are stock, and the optional illuminated "Jeep" inserts simply replace them (you also have to hook them up to a power source). There is also another Jeep door sill option, the "Grand Cherokee" stick-on brushed metal protection plates that are applied on the painted part of the door sill in front of the metal insert plastic door sills.
Also keep in mind that for the stainless steel pedals, the brake pad is the most difficult to install of the two pedals. I was able to install mine by boiling in water for 5 minutes (to make the rubber back soft), lubing the pedal itself with dish washing soap, and using a work glove (so as not to burn my hand), starting from the bottom...pushing the pedal cover on...then prying the top lip on back with a small screw driver. NOT an easy job!