Still need to find a way to overcome potential problem from this 1dff8bde0b66369651a64b6e9806412c6aeee7aa commit, that some files with right extension might not be actually renderable images, in which case the rendering of the whole folder stops. The proposed solution had some flaws, but in principle there should be some feedback from cache_image() back to the App() to exclude failed images from the grid, or just put a placeholder instead.
Still need to find a way to overcome potential problem from this 1dff8bde0b66369651a64b6e9806412c6aeee7aa commit, that some files with right extension might not be actually renderable images, in which case the rendering of the whole folder stops. The proposed solution had some flaws, but in principle there should be some feedback from cache_image() back to the App() to exclude failed images from the grid, or just put a placeholder instead.