Here is a story that captures the "hot" era of those custom themes. The Midnight Refresh
Wait—before you scroll away, let’s clarify something. The modern Nokia C300 (released in 2023) runs Android 12 Go Edition. It does not support Symbian or "Nth" themes. The keyword you searched for—“”—points to a specific, nostalgic corner of mobile history. You are likely looking for content related to the Nokia C3-00 (or similar S40 devices) and the legendary NTH format (Nokia Theme). 320x240 nth nokia c300 themes hot