The overcoat actually made it darker so it did not need additional staining.  

IIRC, 5 votes got a shade of gray, and 10 votes got a bluish shade.

When you want to tag, start with the "@" symbol  and then start writing their name and a list of possible users will show at the bottom of the "Post a Reply" box then click on the name and it will be inserted and shaded blue to show that it works.  

Or a shade sail.

Then solid stain in a very similar color or darker color.

There are literally 1000s of paint types, and most will not work in this application.PS - we did a metal roof on an IHOP restaurant, and for some reason they painted it This spring (original paint was in GREAT shape, and had 30+ years on it). 2 months later the "new" paint came off / became grey, and they just painted it second time, two shades off - I really have no idea why - probably corporate rebranding, as the also redid the exterior

No cornice, but I can see new darker gutters. 

Would adding another stain not help because it would make both the light and the dark spots darker?

The tree might be adding needed shade and privacy.

Hello, I'm working on a project right now, and the walls in each of the rooms are painted similar colors (shades of a light grey), however, the ceilings were left an offwhite color.