I feel like people may get the impression that something is wrong with this site because the major color highlight (from the header bar) is blue, which used to be the Windows Phone OS color, and Android is commonly known as the "green" mobile OS.
Here's a visual example of how it could be improved with 2 simple css rules:
.site-header {
background-color: HSL(80, 90%, 47%);
}
.site-header img {
filter: hue-rotate(120deg) invert(100%);
}
If rendered to an image, no CSS would be required. Since this is just a recolor, essentially, it shouldn't take a long time to think this over with a designer. What do you think?