diff --git a/packages/aws-cdk/lib/api/util/cloudformation/stack-activity-monitor.ts b/packages/aws-cdk/lib/api/util/cloudformation/stack-activity-monitor.ts
index dd422d3f0e6fd..a299811803f92 100644
--- a/packages/aws-cdk/lib/api/util/cloudformation/stack-activity-monitor.ts
+++ b/packages/aws-cdk/lib/api/util/cloudformation/stack-activity-monitor.ts
@@ -682,7 +682,7 @@ export class CurrentActivityPrinter extends ActivityPrinterBase {
 
     // Display in the same block space, otherwise we're going to have silly empty lines.
     this.block.displayLines(lines);
-    this.block.removeEmptyLines(lines);
+    this.block.removeEmptyLines();
   }
 
   private progressBar(width: number) {
@@ -745,7 +745,7 @@ function colorFromStatusActivity(status?: string) {
     return chalk.red;
   }
 
-  if (status.startsWith('CREATE_') || status.startsWith('UPDATE_')) {
+  if (status.startsWith('CREATE_') || status.startsWith('UPDATE_') || status.startsWith('IMPORT_')) {
     return chalk.green;
   }
   // For stacks, it may also be 'UPDDATE_ROLLBACK_IN_PROGRESS'
diff --git a/packages/aws-cdk/lib/api/util/display.ts b/packages/aws-cdk/lib/api/util/display.ts
index a7071ed6a12a4..44e5b6c9fb1c0 100644
--- a/packages/aws-cdk/lib/api/util/display.ts
+++ b/packages/aws-cdk/lib/api/util/display.ts
@@ -7,6 +7,7 @@ const wrapAnsi = require('wrap-ansi');
  */
 export class RewritableBlock {
   private lastHeight = 0;
+  private trailingEmptyLines = 0;
 
   constructor(private readonly stream: NodeJS.WriteStream) {
   }
@@ -22,14 +23,18 @@ export class RewritableBlock {
   }
 
   public displayLines(lines: string[]) {
-    lines = terminalWrap(this.width, expandNewlines(lines)).slice(0, getMaxBlockHeight(this.height, this.lastHeight, lines));
+    lines = terminalWrap(this.width, expandNewlines(lines));
+    lines = lines.slice(0, getMaxBlockHeight(this.height, this.lastHeight, lines));
 
     this.stream.write(cursorUp(this.lastHeight));
     for (const line of lines) {
       this.stream.write(cll() + line + '\n');
     }
+
+    this.trailingEmptyLines = Math.max(0, this.lastHeight - lines.length);
+
     // Clear remainder of unwritten lines
-    for (let i = 0; i < this.lastHeight - lines.length; i++) {
+    for (let i = 0; i < this.trailingEmptyLines; i++) {
       this.stream.write(cll() + '\n');
     }
 
@@ -37,8 +42,8 @@ export class RewritableBlock {
     this.lastHeight = Math.max(this.lastHeight, lines.length);
   }
 
-  public removeEmptyLines(lines: string[]) {
-    this.stream.write(cursorUp(this.lastHeight - lines.length));
+  public removeEmptyLines() {
+    this.stream.write(cursorUp(this.trailingEmptyLines));
   }
 }
 
@@ -62,26 +67,18 @@ function cll() {
 function terminalWrap(width: number | undefined, lines: string[]) {
   if (width === undefined) { return lines; }
 
-  const ret = new Array<string>();
-  for (const line of lines) {
-    ret.push(...wrapAnsi(line, width - 1, {
-      hard: true,
-      trim: true,
-      wordWrap: false,
-    }).split('\n'));
-  }
-  return ret;
+  return lines.flatMap(line => wrapAnsi(line, width - 1, {
+    hard: true,
+    trim: true,
+    wordWrap: false,
+  }).split('\n'));
 }
 
 /**
  * Make sure there are no hidden newlines in the gin strings
  */
 function expandNewlines(lines: string[]): string[] {
-  const ret = new Array<string>();
-  for (const line of lines) {
-    ret.push(...line.split('\n'));
-  }
-  return ret;
+  return lines.flatMap(line => line.split('\n'));
 }
 
 function getMaxBlockHeight(windowHeight: number | undefined, lastHeight: number, lines: string[]): number {
diff --git a/packages/aws-cdk/test/api/util/display.test.ts b/packages/aws-cdk/test/api/util/display.test.ts
index 26b54b736b104..4d116078f18df 100644
--- a/packages/aws-cdk/test/api/util/display.test.ts
+++ b/packages/aws-cdk/test/api/util/display.test.ts
@@ -36,4 +36,27 @@ describe('Rewritable Block Tests', () => {
 
     expect(output.length).toEqual(6);
   });
+
+  test('display accounts for newlines in output', () => {
+    const output = stderr.inspectSync(() => {
+      block.displayLines(['before\nafter']);
+    });
+    expect(output.length).toEqual(3); // cursorup + 2 lines
+  });
+
+  test('removeEmptyLines only removes trailing lines', () => {
+    stderr.inspectSync(() => {
+      block.displayLines(Array.from(Array(5).keys()).map(x => `${x}`));
+    });
+    stderr.inspectSync(() => {
+      // Leaves 3 empty lines
+      block.displayLines(Array.from(Array(2).keys()).map(x => `${x}`));
+    });
+
+    const output = stderr.inspectSync(() => {
+      block.removeEmptyLines();
+    });
+    const expectedEmptyLines = 3;
+    expect(JSON.stringify(output)).toEqual(JSON.stringify([`\u001b[${expectedEmptyLines}A`]));
+  });
 });
\ No newline at end of file