RFR: 7124282: [macosx] Can't see table cell highlighter when the highlight border is the same color as the cell. [v3]

[Harshitha Onkar]

On Mon, 14 Mar 2022 22:22:23 GMT, Harshitha Onkar <duke at openjdk.java.net> wrote:

>> Do we also need to do the same for List.focusCellHighlightBorder?
>
> @prsadhuk Thank you for reviewing. 
> 
> Earlier when I used the default thickness (thickness=1) the cell focus ring was visible but not prominent as shown in the following screenshot. Please let me know if I need to change thickness to 1 or keep it the same?
> 
> **Thickness=1**
> 
> ![image](https://user-images.githubusercontent.com/95945681/158270171-8260c71f-511f-481e-b88e-f226818a8219.png)
> 
> The thickness looks the same on retina as well as non-retina display. I have included the screenshots for comparison-
> 
> ![image](https://user-images.githubusercontent.com/95945681/158270568-b3018b09-8227-4bf0-9751-80d30df4e411.png)

Since List.focusCellHighlightBorder uses the same focusRingColor as used by Table we can change it for List as well. Can I make changes to List using this issue and PR or should I track it by adding a new JBS bug/PR ?

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PR: https://git.openjdk.java.net/jdk/pull/7768