Similar issues in the US. Unless there is a conscious effort to recreate some well documented historical appearance, some of them can look pretty shabby, or so charmlessly modern you think you’re in a Toyota dealership. For years, St. Joseph’s on Capitol Hill was my parish and it was outstanding for its cracked and peeling greenish paint. To people of a certain age, the chasubles are a joke, and the younger ones don’t know the difference. I think it is a combination of lack of funds (after you’ve paid for the new roof, you might not want to splash out on a professional paint job) and truly, horribly, abysmal taste. Lucky the church that has the wherewithal and an interested someone with cultivated taste to take care of the building properly.
Great description!