関連ワード:  how to make a layer opaque in gimp    how to make a layer transparent in gimp    how to make a layer translucent in gimp    how to make a layer see through in gimp    how to make a layer less opaque in gimp    how to make a layer semi transparent in gimp    how to make a layer more transparent in gimp    how to make a layer background transparent in gimp    how to create a transparent layer in gimp    how to make part of a layer transparent in gimp