The G is from graphics [ɡɹæfɪks].

Additionally, word-initial single G before short I is always [g] instead of [dʒ] in native English: gift girl give gibbon gimlet gizzard gilded git gimp giddy gig gimbal.

The exceptions are borrowed French words: gin (le gin), ginger (le gingembre), giraffe (la girafe), giblet (OF: gibelet).

> their word, their rules

That strongly reminds me of "it's spelt Raymond Luxury-Yacht, but it's pronounced 'Throatwobbler Mangrove'".

I personally follow the "I am the user, my rules" when it comes to language rules :P. It is at least as strong as "their word, their rules".

Also I can see that Paul Graham's "my website my rules" is even stronger than mine or DJ Delorie's, so Djgpp is also correct (if not by the Gods, then by fist).