More modern material UI

[harshad1]

In this PR I have adjusted the colours and some UI elements in Markor to more closely match the material guidelines.

Per @gsantner's request I have reverted to using 'primaryColor' for the light mode top bar. Material design guidelines say that dark mode should have a dark bar and I also think this looks way better so I have kept this

[harshad1]

In a subsequent PR, I may add an option to make the UI colours follow the editor colours. (so fully solarized will be possible)

[harshad1]

@guanglinn I have addressed handling none priority mapping to a single letter here.

I do this by checking index (0 = remove)

Should be more robust with this approach

[guanglinn]

Thanks, I closed that PR #2704

[harshad1]

@gsantner This is now ready for resting and review.

All feedback is appreciated.

[gsantner]

Hello @harshad1

Thank you, overall the PR is fine and a good improvement!

However -

in dark mode, please restore the blueish-black color at toolbar and bottom navigation.
Humbly said, also like the previous background color better [softer background/text, less straining to my eyes], but it's little difference.

and in light mode, please restore

• the soft white instead of the bright white
• dark system navigation
• same as for dark mode, blueish-black toolbar and bottom navigation

I prefer Markor to stay and not to be pure white / black / gray based UI.

[harshad1]

Thanks for the review. I'll make changes.

For reference I picked the lightest grey and the darkest white which are still considered compatible with the material design spec. Even with these changes Markor is still considerably softer than other apps I referred to (thunderbird, gmail etc etc).

I will make it softer still.

[harshad1]

This branch ended up being too hard to work in. I created a new branch with more streamlined changes. Opening a new PR with the same intent