Integrated: 7056: Fix dark mode

[Brice Dutheil]

On Sun, 16 Jan 2022 15:32:33 GMT, Brice Dutheil <bdutheil at openjdk.org> wrote:

> This change allows a user of the JMC RCP application to switch the appearance with the default Eclipse themes.
> 
> Those are shipped via the `org.eclipse.ui.themes` and `org.eclipse.e4.ui.css.swt.theme` plugin.
> In order to activate them all that is is required is to add the above in the application feature file, and to declare them in the application manifest file.
> 
> 
> 
> **After**
> ![Screenshot 2022-01-16 at 16 23 46](https://user-images.githubusercontent.com/803621/149666554-3016effc-b527-4dd7-aa6b-baa07a9569ad.png)
> ![Screenshot 2022-01-16 at 16 26 21](https://user-images.githubusercontent.com/803621/149666560-cab76fc9-dd9a-4977-9fe7-0a7dc99335c5.png)
> 
> 
> 
> **Before**
> ![Screenshot 2022-01-16 at 16 24 45](https://user-images.githubusercontent.com/803621/149666542-b8e22717-a797-44b6-9805-30b9c14fb9fa.png)
> There's no theme, as such the combo box doesn't open either.

This pull request has now been integrated.

Changeset: b61f6a79
Author:    Brice Dutheil <bdutheil at openjdk.org>
Committer: Alex Macdonald <aptmac at openjdk.org>
URL:       https://git.openjdk.org/jmc/commit/b61f6a798d63f2ba4616fa734440d170e2ed06ad
Stats:     15 lines in 2 files changed: 13 ins; 0 del; 2 mod

7056: Fix dark mode

Reviewed-by: aptmac

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PR: https://git.openjdk.org/jmc/pull/362