just a bit of vocabulary:
Glazing: applying a very thin watered down layer - generally in specific areas. In this hobby, glazes are generally used to build highlights. You don\'t load the brush, but apply lighter and lighter glazes to smaller and smaller areas to build up the highlight.
Washes: applying a very thin watered down layer - generally with a wetter brush to cause paint to sink into recesses. Usually used to darken shadow areas.
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Black glazes are very rare in my mind, but I think you are talking about doing a wash to mute the transitions?