RFR: 8328482: Convert and Open source few manual applet test to main based [v3]

[Harshitha Onkar]

On Wed, 27 Mar 2024 03:31:00 GMT, Tejesh R <tr at openjdk.org> wrote:

>> Probably waiting for me to OK it off-line. I've now done so.
>
> Pushed it now.

Does the test mean opaque icon background by "opaque icon"? If yes, then should we use one .gif with opaque background and another with transparent background. Currently both gif files - **dukeWave.gif and fight.gif**, have transparent backgrounds.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18448#discussion_r1544758085