imagery offset

data/core.yaml

@@ -807,6 +807,7 @@ en:
       tooltip: Show coordinates and regional details.
     fix_misalignment: Imagery Offset
     offset: "Drag anywhere in the gray area below to adjust the imagery offset, or enter the offset values in meters."
+    offset_label: "Adjust Imagery Offset"
   map_data:
     title: Map Data
     description: Map Data

modules/ui/sections/background_offset.js

@@ -148,6 +148,7 @@ export function uiSectionBackgroundOffset(context) {
             .attr('class', 'nudge-inner-rect')
             .append('input')
             .attr('type', 'text')
+            .attr('aria-label', t('background.offset_label'))
             .on('change', inputOffset);
 
         nudgeWrapEnter
@@ -155,6 +156,7 @@ export function uiSectionBackgroundOffset(context) {
             .selectAll('button')
             .data(_directions).enter()
             .append('button')
+            .attr('title', function(d) { return 'nudge ' + d[0]; })
             .attr('class', function(d) { return d[0] + ' nudge'; })
             .on('click', function(d3_event, d) {
                 nudge(d[1]);