#265 #75 creating theme and fixing the error icon color

[pushyamig]

Fixes #265, #75

1. This issue took a first pass at creating a theme and getting all the generalized styling at one place. We could add more stuff to theme but this is a bare bone implementations
2. So far error, warn, success and info to users are coming from theme

This issue touches all of the features. Based on the Feedback i can add more here or later.

[ssciolla]

This looks good! Couple minor comments for you to consider.

I will note that I did a search for "color: " in client and there were a number of other hex values, mostly grayscale stuff I think. It would be nice to tidy this up at some point, but it doesn't have to be as part of this issue.

[ssciolla]

Also, this doesn't introduce a primary color, which we may want to do before we release.

[pushyamig]

Also, this doesn't introduce a primary color, which we may want to do before we release.

I think is fairly simple to do, But what should be that color? Can we do what Myla is doing #00274C

[ssciolla]

Also, this doesn't introduce a primary color, which we may want to do before we release.

I think is fairly simple to do, But what should be that color? Can we do what Myla is doing #00274C

Mmm, maybe check with Janel, but that's probably reasonable. It doesn't need to be done in this PR.

[ssciolla]

LGTM!

[zqian]

Test successful:

After I changed the palette colors in theme.ts file (primary, error, warning, success, info), I can verify consistent color changes in all CCM subtask screens.