The Importance of Capitalization in the New Testament

Why in your version of the New Testament is the Holy Spirit spelt in lowercase? And Ruth also adds, I'm bothered by it by your breaking with tradition and not capitalizing Holy Spirit as in Matthew 1 verses 18 and 20. The original Greek text did not use capital letters there. Is that your only reason for not doing so? Actually, a lot of the early Greek texts were in block capitals. But this is the sort of question that could only arise within an English speaking world.