[WIP] Complete UI Refresh with Material Design Theming

[cognition9144]

Fixes #809

• TTS UI is broken
• Other color schemes does not work, such as Always Dark, Always Light, E-Ink, and Solarized. This can be easily achieved by changing some attributes. Example: https://github.com/material-components/material-components-android/tree/master/catalog/java/io/material/catalog
• Serif/Sans Serif toggle doesn't work. May also be easily done.
• Two Latin-based fonts are bundled. Not wise placement. May further add fonts for other languages (CJK, for example).

Other functionalities are working.
A lot of refactorations have been done. Some are not in the most decent way. Some fixes are required as showed above, but I probably not have that much time recently. Maybe @msfjarvis would like to help?

If anyone wants to boost this, you may

[msfjarvis]

Maybe @msfjarvis would like to help?

Absolutely. If you rebase this on current master I'd definitely like to take a peek tonight.

[tcitworld]

• Check why Travis doesn't build anymore
• Remove the q file added.

[cognition9144]

I think it's fixed now

[Strubbl]

There is a conflict in app/build.gradle .
Is it really necessary to increase minSDK from 21 to 24? That would be from Android 5 to 7.

[cognition9144]

There is a conflict in app/build.gradle .

Will, maybe it needs to be merged sooner before more conflicts arrive. @msfjarvis

Is it really necessary to increase minSDK from 21 to 24? That would be from Android 5 to 7.

Not really. This refresh only requires minSDK to be 19. I didn't aware that there were SDK-aware xml. I'll fix it.

[cognition9144]

I recently have some time to finish this. I'll resolve conflicts and fix the TTS UI first. Of course we need to ensure accessibility.

[di72nn]

Thanks, finishing it would be great - I don't think we can do it by ourselves.

[lokesh-krishna]

Are there any screenshots to preview what this looks like?