GP-2962 - Theme Fixes - fixed widget bg colors to be universal; fixed tooltips to be universal; fixed odd table behavior related to old lingering values

Ghidra/Framework/Gui/data/gui.theme.properties

@@ -3,6 +3,9 @@
 color.bg = white // note: this is the text/widget bg color
 color.fg = black
 
+// On some LaFs the tables and tree use the bg color we define. Make that consistent for all LaFs.
+[color]Viewport.background = color.bg
+
 color.cursor.focused = red
 color.cursor.unfocused = pink
 
@@ -13,7 +16,7 @@ color.bg.uneditable = system.color.bg.application // TODO see if there exists an
 color.bg.filtered = yellow
 color.fg.hint = gray
 
-color.bg.tooltip = rgb(255, 255, 230)
+color.bg.tooltip = [color]ToolTip.background
 
 color.fg.messages.hint = color.fg.hint
 color.fg.messages.alert = orange
@@ -32,7 +35,7 @@ color.fg.table.unselected = white
 color.fg.error.table.unselected = color.fg.error
 color.fg.error.table.selected = lightpink
 
-color.bg.tree = [color]Tree.textBackground
+color.bg.tree = color.bg 
 color.bg.tree.selected = [color]Tree.selectionBackground 
 
 // Fonts
@@ -123,3 +126,24 @@ color.fg.table.uneditable.unselected = lightgray
 
 color.bg.tree = color.bg
 color.bg.tree.selected = [color]Tree.selectionBackground 
+
+
+[Flat Dark]
+
+// the default inactive selection color is too close to the bg color to be easily visible
+color.flat.selection.inactive = #0F4C6A
+
+
+[CDE/Motif]
+
+color.bg = [color]window // gray for motif
+color.fg = [color]textText
+
+
+[Nimbus]
+
+// Nimbus uses the ToolTipPainter class to paint tooltips.  That class does not read the property
+// we use for tooltips, which is 'ToolTip.background', even though that is defined by the LaF.
+// Setting the 'info' value here to changes the key the painter users to paint tooltips.  The info
+// value seems to only be used for tooltips, which means this change affects no other components.
+[color]info = [color]ToolTip.background