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# Sharp 中文文档

v0.25.4 - 12th June 2020

  • Allow libvips binary location override where version is appended. #2217 @malice00

  • Enable PNG palette when setting quality, colours, colors or dither. #2226 @romaleev

  • Add level constructor option to use a specific level of a multi-level image. Expose levels metadata for multi-level images. #2222

  • Add support for named alpha channel to extractChannel operation. #2138

  • Add experimental sharpness calculation to stats() response. #2251

  • Emit warning event for non-critical processing problems. #2032