I want a group of tiles to have the same custom background color. But it's difficult to select a consistent background color since the color picker doesn't allow for the selected color value to be viewed or manually entered.
Another option is being able to select multiple tiles and then move or edit background color as a group.
One option is to export the dashboard as a text file, edit the text file, and import it back to a new dashboard.
Use the follow procedure for up to three groups of colors.
Edit dashboard.
Change up to three tiles to different custom background colors. We'll assign these as color 1, 2, and 3. Note the name of these tiles.
For other tiles that we want to match the above colors, we'll change their background colors to temporary colors for now: Color 1: upper-left corner color in color selector (white). Color 2: upper-right corner color (red). Color 3: lower-left/right corner color (black).
Stop dashboard edit.
In Apps > Easy Dashboards, find dashboard and on the far-right, click the (i) icon.
On the bottom, click export/import/clone.
Click Export to download dashboard as text file.
Open the text file in notepad and search for tile name of the initial three tiles with the desired background colors. Each name may show up more than once, but only one instance should have: "bgOverride":{"r":xxx"b":yyy,"g":zzz}. Copy the bgOverride text for all three tiles.
Now to use notepad's search and replace to replace the temporary colors with the desired colors. Color 1: replace all of white: "bgOverride":{"r":255,"b":255,"g":255} with desired tile color. Color 2: replace all of red: "bgOverride":{"r":255,"b":0,"g":0} with desired tile color. Color 3: replace all of black: "bgOverride":{"r":0,"b":0,"g":0} with desired tile color.
Save to a new text file.
In Apps, click export/import/clone.
Under import Apps, click Choose file and click the new text file.
Click Import.
Next to the suggested name, click the save icon.
Click Import button.
Check out the new dashboard to see if it's correct. If yes, then remove the old dashboard and rename the new dashboard to the original name.