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ACRONYMS = ['CSS', 'HTML', 'IME', 'JS', 'SVG', 'URL', 'WOFF', 'XML', 'XSLT']


def lower_first(name):
    """Return name with first letter or initial acronym lowercased.

    E.g., 'SetURL' becomes 'setURL', but 'URLFoo' becomes 'urlFoo'.
    """
    for acronym in ACRONYMS:
        if name.startswith(acronym):
            return name.replace(acronym, acronym.lower())
    return name[0].lower() + name[1:]