On Wed, 11 Nov 2020 08:00:09 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> wrote:
> Issue is a JLabel with a translucent foreground color properly renders plain > text, but with HTML text, the alpha component is discarded and the text is > rendered using an opaque color. > As per https://www.w3schools.com/cssref/func_rgba.asp, CSS supports rgba() to > support alpha and render translucent text color > but support for rgba() is not present in JDK html text rendering. > > Added support for rgba() to render translucent text color. src/java.desktop/share/classes/javax/swing/plaf/basic/BasicHTML.java line 76: > 74: } > 75: col = new Color(Integer.parseInt(color[0]), > Integer.parseInt(color[1]), > 76: Integer.parseInt(color[2]), > (int)(Float.parseFloat(color[3])*255)); It seems OceanTheme in Metal L&F supports only rgb `ColorUIResource CONTROL_TEXT_COLOR = new PrintColorUIResource(0x333333, Color.BLACK)` so even when Color(r,g,b,a) is used, it creates rgb color and not rgba so alpha is obtained and passed separately. ------------- PR: https://git.openjdk.java.net/jdk/pull/1158
