Merge branch 'bug/JAL-2983negativeSliderMin' into releases/Release_2_11_1_Branch

Conflict in way transparency slider was inited - followed HEAD's pattern here.

diff --cc src/jalview/gui/FeatureSettings.java
index b87e4bf,3a04b88..aeac959
--- 1/src/jalview/gui/FeatureSettings.java
--- 2/src/jalview/gui/FeatureSettings.java
+++ b/src/jalview/gui/FeatureSettings.java
@@@ -162,11 -153,7 +162,11 @@@ public class FeatureSettings extends JP
  
    JPanel groupPanel;
  
-   JSlider transparency = new JSlider();
 -  JSlider transparency;
++  JSlider transparency= new JSlider();
 +
 +  private JCheckBox showComplementOnTop;
 +
 +  private JCheckBox showComplement;
  
    /*
     * when true, constructor is still executing - so ignore UI events

diff --cc src/jalview/gui/FeatureTypeSettings.java
Simple merge