The advice I have seen would be similar to this: the garage should not be the focal point but rather, should blend in. So you would select a color that would cause it to disappear against the siding material. The front door should be highlighted either with color or interesting features such as attractive planters, lighting, etc. Pretty sure most advice would call for selecting one “visually heavy” material (either brick or stone) but not both. And I believe they would recommend not having the stone facade run up toward the roof of just one area (because it’s a visually heavy or grounded material it should stay low to the ground).

These are suggestions I have read over the past couple of months and learned from reading various books. I’m not a pro or a designer.