No icon style and Default Icon. Along with first Letter if no icon would be useful.

Also user needs to be able to control how man tiles per row.

For example, below the tiles with no icon are blank when a letter would be better.  I am unable to set the default amount of icons in a row to 4 (correct me if  I am wrong).  Instead I have along row of tiles, making them larger helps but is not what we would prefer.

Thank you for this detailed information. All valid points and mostly we will implement everything.

Will keep you updated.