-Adding the margin for bottom at dialog
-Modify the text color of summay in the list at dialog when device is
dark mode.
Bug: 212396431
Test: build pass and check the dialog UI.
Change-Id: I1ec587fd9d64ad67bbf3479c7931c0a901f572cf
This CL updates the colors and properties of various themes and
widgets to make them follow dark theme UI. Specifically, it changes
the color accent and uses true black for the background.
Test: manual inspection
Bug: 111397440
Change-Id: I15214a4c5d4864244af856312d2fc3e3a7e7ce36