Basic customization of Minimatica theme

Hello!

I have created a website for my wedding using the Minimatica theme.

My website is at: arthurandben.com

I have most of my content up; now I just want to do a little bit of customization.

I am looking for advice on how to make some simple adjustments:

– Adding a graphic to the website title that appears at the top of each page
– Changing the background color (currently black) on the slider of the home page
– Changing the background color (currently black) of the title bar that appears at the top of each page
– Changing the font family/style/color etc. of the website title, the webpage title bars, and headings and paragraphs on each page

I am a novice and am only familiar with the most basic aspects of HTML and CSS. I know how to use an FTP application to reach the myriad files that make up my website, but I’ve never worked with anything that involves this many files. Essentially I need to know which files to go into and where to make changes.

Additionally, any other advice about the page in general would be appreciated. I realized I may not be using the theme to full effect, since my webpage is not a photo blog (it is intended as a static site).

Thank you, and thank you for creating this lovely theme!