Svelte Shadcn select item data-highlighted isn't added on hover

I added svelte-shadcn to my project and when using Select component data-highlighted property isn't added to Select.Item on hover, hence highlighting css styles aren't added. Added the same way as specified in their example here: https://www.shadcn-svelte.com/docs/components/select This is how I added the select bit:

<Select.Root type="single" name="parallelRun" bind:value={selectedPr}>
    <Select.Trigger class="w-[100%]">
        {triggerContent}
    </Select.Trigger>
    <Select.Content>
        <Select.Group>
            <Select.GroupHeading>Parallel Runs</Select.GroupHeading>
            {#each data.parallelRuns as parallelRun}
                <Select.Item value={parallelRun.id} label={parallelRun.name} class="select-item">
                    {parallelRun.name}
                </Select.Item>
            {/each}
        </Select.Group>
    </Select.Content>
</Select.Root>

I've tried googling to find a solution, but failed. Expected result: data-higlighted property should be added to resulting div for Select.Item and standard Shadcn styles should be applied.

If I'm understanding correctly and you're trying to do something like this:

<style>

.select-item:hover {
    ...your highlighting styles
}

</style>

Then your issue is the scoping of the styles by Svelte, which is done by generating a class that will be added to every HTML element in the component. Since you're actually including the <Select.item> component and passing a class name to it instead of giving a class to a rendered HTML element, it will not apply any CSS in your <style> tag since it won't pass the class generated for the scoping to the components. Your solution would be to use the global tag for styles.

<style>

:global(.select-item:hover) {
    ...your highlighting styles
}

</style>

But that's not scoped so it will apply to any element in the whole application with that class. So a better way is to leverage the scoping only select stuff inside your current component by wrapping everything in an element like this:

<div class="wrapper">
    <Select.Root type="single" name="parallelRun" bind:value={selectedPr}>
        <Select.Trigger class="w-[100%]">
            {triggerContent}
        </Select.Trigger>
        <Select.Content>
            <Select.Group>
                <Select.GroupHeading>Parallel Runs</Select.GroupHeading>
                {#each data.parallelRuns as parallelRun}
                    <Select.Item value={parallelRun.id} label={parallelRun.name} class="select-item">
                        {parallelRun.name}
                    </Select.Item>
                {/each}
            </Select.Group>
        </Select.Content>
    </Select.Root>
</div>

<style>

/* this will only apply to the selected class that descends from .wrapper */
.wrapper :global(.select-item) {
    your styles here...    

/* this will apply to all selectors inside this that descend from .wrapper */
.wrapper :global {
    .select-item:hover {
        your styles here...
    }

    .any-other-selector {
        more styles... 
    }

</style>