The different colours and colour gradations are assigned different meanings for me, e.g. the "common" yellow is generally important text, the "common" green are definitions, the "common" blue are examples, a more transparent blue are interesting quotations / statements.
Unfortunately, I find it difficult to remember the assignment for every shade. It would therefore be useful if I could give the different highlighter colours a name or description. As a result, I would not have to constantly interrupt my work process in order to remember the assigned gradation for different specifications. In addition, the colour gradations can be used uniformly across different literatures, which is overall more productive and the colours can then hopefully establish.