Change default text colors.
Add caption and variants of body text styles.
Update text and ratings design in episode details.
Use larger buttons with text below episode.
Update margins and layout of episode details.

- More spacious, added separators.
- Moved ratings below description.
Update design and layout of extension and more buttons.

- Style headers in new bold body style.
- Add divider when stacked, add bottom padding.
- Remove dividers in between buttons.
Update extension config button.
Move service buttons margin up to layout padding.

- Reduced margin when buttons are side-by-side.
No bold text on tabs, thinner indicator, no separators.

- Also drop divider code from sliding tab strip and layout.
Move episode calendar button to overflow actions.
Add sample text, safer margin placement in episode layout.
Update text and layout in overview to match episode screen.
Update most of show fragment layout and design.

- Still left: cast, crew and ratings UI on tablets.
Update design of cast and crew layouts.

- Also supply error drawable (just dark color).
Update narrow ratings design.
Reduce margin between cast and crew.
Update season fragment text styles.
Hide remaining episodes counter if it is zero.
Tweak show meta info (drop light font).
Display title on shows screen.