Hello @hchris,

First of all thank you very much for using the theme and for the appreciations.

Now to change hover color of the site title add below given CSS by going to Admin Panel > Appearance > Customize > Additional CSS.

.site-title a:hover{
    color: #22406a;
}

To change the color of the default button, add below given CSS

a.btn.btn-fill {
    background-color: #000;
}

Change the color code as per your requirement.

Finally to remove the page title add below given CSS.

.page h2.page-title {
    display: none;
}

Hope this helps.

Let us know if there is any confusion further.