Looking at the planet screen I think there is an inconsistency with the icons.
In the picture below I circled icons to which I refer. The adjacency bonus icons in the upper left show several arrows around to demonstrate adjacency bonus and the up arrow as the bonus on the tile (which I like). But the highlight of the tile you use the up arrow for bonuses on adjacent tiles. Would it not be better to use the other icon to demonstrate that it is an adjacency bonus and give users a reminder what the orange circle of arrows icon represent?