This working fine and solved my issue @Sean . Happy Holidays :)

@Sean
Maybe i did not explain properly. I need a layout for the portrait oriented pictures to fit in the screen without disturbing the aspect Ratio.

MODE:COVER

• Works perfectly for the landscape oriented pictures since it is fitting the picture perfectly in the screen. There is no stretch or crop.

• Portrait oriented pictures are cropped to landscape orientation (technically).

MODE:CONTAIN

• Works fine for the portrait oriented pictures i.e: The full image is visible in the screen, no crop, no stretch

• Landscape pictures are also displayed without crop, but there are borders.

Need something like this:
If the pic is a Landscape oriented one, Mode should be COVER, else should be CONTAIN.
In Other words, need an AUTO-SCALING option.

From a programming perspective, is this feasible? If not, I will try the COVER mode but not liking black borders for all the images.

@sean
This is working fine now.
Below is my config snippet:

refreshInterval: 1000*30,  
scanInterval: 1000*60*60, // too many scans might cause API quota limit also.
//note(2018-07-29). It is some weird. API documents said temporal image url would live for 1 hour, but it might be broken shorter. So, per 10 min scanning could prevent dead url.

sort: "random", //'time', 'reverse', 'random'
showWidth: "100%", // how large the photo will be shown as. (e.g;'100%' for fullscreen)
showHeight: "100%",
originalWidthPx: 1920, // original size of loaded image. (related with image quality)
originalHeightPx: 1080, // Bigger size gives you better quality, but can give you network burden.
mode: "cover", // "cover" or "contain" (https://www.w3schools.com/cssref/css3_pr_background-size.asp)

Question:
My monitor is in Landscape mode. My Landscape pictures displays fine (Fitting exactly in screen). But portraits display in full size cropping the pic mostly and in an expanded view. Only part of image is visible since it large.

Is there a way to “Fit the picture into the screen” when it is Portrait just like Landscape? I tried other mode. It is too small and has borders. I want the pic to fit exactly in the screen.
My monitor is 22 inch, Full HD (1080P) if that helps.

This bg css is working great @Sean .

I actually used this in the @shbatm mmm-carousel as a custom css class.

@Sean :
Got the scan calculation of how you got 2880 . thanks.

Question:
Does the Scan calculation mean If scanned every 10 mins, a total of 2880 photos will be scanned in 24 hours?

If refresh Interval is every 1 minute, then 60*24 = 144 photos out of the 2880 photos will be shown?

Thanks @Sean
Will send in the config tonight in email.
I think Shared Album should work. Will try that once I find some time over weekend.
I have 3K pictures for now from one phone. More coming from other device (another account which I will try to put in shared album).

@bowlofred

1. Thanks for your reply. I will set the Interval as you said.
2. Regarding multiple albums - Now i get it based on your reply and Sean’s reply.
3. I am using Random as the sort method.

@Sean
Thanks for response to all the questions.
Regarding the Scan Finishing issue, I will try to change the Sort method and try again.

Reason for asking multiple albums - I take family pics from 2 phones. Both syncing pictures to 2 different Google accounts. So there will be 2 albums. They are all automated and easy. I will work around by sharing one account into another, create an auto-album called ‘MagicMirror’. This should solve the issue.

@Module-Developers
I started with magicMirror and need to understand the following:

1. I want a picture to be displayed every minute (using it as photo frame). What should be the best Refresh and Scan Interval considering the API quota limit.

2. Can I add different albums (example: Travel; Wedding; Food) and make it work random?

3. Once the photos scan is done, the last photo scanned is displayed continuosly. Is there a repeat feature once the last photo is scanned?