Hi Jeff, let me see if I can help point you in the right direction. So this is the main CSS for the arrow:
.tribe-events-widget-nav a {
position: absolute;
top: 0;
display: block;
font-weight: normal;
text-decoration: none;
font-size: 16px;
width: 16px;
height: 16px;
overflow: hidden;
background: url(images/mini-ajax-arrow-sprite.png) -16px -16px no-repeat;
}
…and then the next and prev links use specific code to align the sprite:
.tribe-events-widget-nav a.next-month {
right: 0;
background-position: 0 -16px;
}
So the first thing you would want to do is either use a different sprite or use individual images for each of the links. Then, just change the width and height and you should be good to go.
Does that help?