Hi, Many thanks for your great review, really happy that the Customizr is what you needed!
1) It is possible to make it smaller but as of now, it is not that simple and you need to modify the code at ifferent places in the theme. Unfortunately it would be too long to explain there but I will make this option available in a future version.
2) tagline color : use the custom CSS field in the customizer screen and add this code :
.navbar-wrapper .navbar h2 {
color :#yourcolor
}
h2.site-description {
color: #yourcolor
}
3) read more button, here is the code that controls the color for the red skin:
.btn-primary {
color: #FFF;
text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
background-color: #C30606;
background-image: -moz-linear-gradient(top, #E10707, #970505);
background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#E10707), to(#970505));
background-image: -webkit-linear-gradient(top, #E10707, #970505);
background-image: -o-linear-gradient(top, #E10707, #970505);
background-image: linear-gradient(to bottom, #E10707, #970505);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffe10707', endColorstr='#ff970505', GradientType=0);
border-color: #970505 #970505 #4D0202;
border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
filter: progid:DXImageTransform.Microsoft.gradient(enabled = false);
}
Just replace the gradient colors with yours and copy the code in the custom CSS field.
Hope this helps!
Nicolas