Refactor hardcode color to use OUI in maps_legacy (#4294)

* Refactor color to use OUI
* Pull theme value from actual active theme
* Update changelog

---------

Signed-off-by: Matt Provost <provomat@amazon.com>
Signed-off-by: Josh Romero <rmerqg@amazon.com>
Co-authored-by: Anan Zhuang <ananzh@amazon.com>
Co-authored-by: Josh Romero <rmerqg@amazon.com>
(cherry picked from commit 0b54e84)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

# Conflicts:
#	CHANGELOG.md

src/plugins/maps_legacy/public/map/opensearch_dashboards_map.js

@@ -41,6 +41,7 @@ import { i18n } from '@osd/i18n';
 import { ORIGIN } from '../common/constants/origin';
 import { getToasts } from '../opensearch_dashboards_services';
 import { L } from '../leaflet';
+import { euiThemeVars } from '@osd/ui-shared-deps/theme';
 
 function makeFitControl(fitContainer, opensearchDashboardsMap) {
   // eslint-disable-next-line no-undef
@@ -474,7 +475,7 @@ export class OpenSearchDashboardsMap extends EventEmitter {
   }
 
   addDrawControl() {
-    const drawColor = '#000';
+    const drawColor = euiThemeVars.euiColorInk;
     const drawOptions = {
       draw: {
         polyline: false,