Add some keys description to registry.properties

platform/util/resources/misc/registry.properties

@@ -92,6 +92,7 @@ ide.appIcon.badge=true
 ide.appIcon.requestAttention=true
 
 ide.svg.icon=false
+ide.svg.icon.description=Load & auto-scale svg version of an icon if present
 
 ide.windowSystem.hScrollChars=5
 ide.windowSystem.vScrollChars=5
@@ -334,6 +335,7 @@ navBar.updateMergeTime=100
 navBar.userActivityMergeTime=100
 
 ide.mac.fix.accessibleLeak=true
+ide.mac.fix.accessibleLeak.description=Reduce a11y-related leaks in Oracle JDK
 
 projectView.showHierarchyErrors=true
 projectView.hide.dot.idea=true
@@ -539,7 +541,9 @@ cvs.roots.refresh.uses.vfs.description=Should CVS roots refresh after update use
 vcs.add.remove.silent=true
 
 ide.ui.scale.override=false
+ide.ui.scale.override.description=Override system scale (used for debugging)
 ide.ui.scale=1.0
+ide.ui.scale.description=Set UI scale factor in float
 
 ide.ui.tree.indent=-1
 ide.ui.tree.indent.description=Allows to increase or decrease indents in trees. Use -1 to use default indent
@@ -705,6 +709,7 @@ JDK8042508.bug.fixed=false
 JDK8042508.bug.fixed.description=Disable check for type variable until javac bug is fixed
 
 linux.jdk.accessibility.atkwrapper.block=true
+linux.jdk.accessibility.atkwrapper.block.description=Block Linux ATKWrapper a11y tool due to its EDT-rule-unawareness
 
 javac.unchecked.subtyping.during.incorporation=true
 javac.unchecked.subtyping.during.incorporation.description=Javac performs unchecked subtyping during incorporation, accepting code which is rejected by the spec and by the eclipse compiler