When using the --hide-ui-dir-config parameter, [Send to Photopea] button is not displayed.

[Odls]

In the photopea-bindings.js file at line 32, this code generates the [Send to Photopea] button:

function createSendToPhotopeaButton(queryId, gallery) {
    const existingButton = gradioApp().querySelector(`#${queryId} button`);
    const newButton = existingButton.cloneNode(true);
    newButton.id = `${queryId}_open_in_photopea`;
    newButton.textContent = "Send to Photopea";
    newButton.addEventListener("click", () => openImageInPhotopea(gallery));
    gradioApp().querySelector(`#${queryId}`).appendChild(newButton);
}

It clones the first button inside #${queryId}, which is [Open images output directory] button.

When using the --hide-ui-dir-config parameter, this button is hidden, and the cloned [Send to Photopea] button is also hidden.

Set display to "flex" in createSendToPhotopeaButton should solve this problem:

newButton.style.display = "flex";

[yankooliveira]

Nice catch, many thanks! Fix added to the latest version.