Fix e2e icon colour (#30299)

* fix: remove white background on e2e verification icon and put white on the checkmark

* test(e2e): add non regression tests

* chore: remove unused CSS mask

playwright/e2e/crypto/crypto.spec.ts

@@ -168,6 +168,7 @@ test.describe("Cryptography", function () {
 
             // Take a snapshot of RoomSummaryCard with a verified E2EE icon
             await expect(page.locator(".mx_RightPanel")).toMatchScreenshot("RoomSummaryCard-with-verified-e2ee.png");
+            await expect(page.locator(".mx_MessageComposer_e2eIcon")).toMatchScreenshot("composer-e2e-icon.png");
         },
     );
 

playwright/e2e/crypto/device-verification.spec.ts

@@ -48,7 +48,10 @@ test.describe("Device verification", { tag: "@no-webkit" }, () => {
         return promiseVerificationRequest;
     }
 
-    test("Verify device with SAS during login", async ({ page, app, credentials, homeserver }) => {
+    test(
+        "Verify device with SAS during login",
+        { tag: "@screenshot" },
+        async ({ page, app, credentials, homeserver }) => {
             await logIntoElement(page, credentials);
 
             // Launch the verification request between alice and the bot
@@ -57,12 +60,15 @@ test.describe("Device verification", { tag: "@no-webkit" }, () => {
             // Handle emoji SAS verification
             const infoDialog = page.locator(".mx_InfoDialog");
             // the bot chooses to do an emoji verification
-        const verifier = await verificationRequest.evaluateHandle((request) => request.startVerification("m.sas.v1"));
+            const verifier = await verificationRequest.evaluateHandle((request) =>
+                request.startVerification("m.sas.v1"),
+            );
 
             // Handle emoji request and check that emojis are matching
             await doTwoWaySasVerification(page, verifier);
 
             await infoDialog.getByRole("button", { name: "They match" }).click();
+            await expect(page.locator(".mx_E2EIcon_verified")).toMatchScreenshot("device-verified-e2eIcon.png");
             await infoDialog.getByRole("button", { name: "Got it" }).click();
 
             // Check that our device is now cross-signed
@@ -72,7 +78,8 @@ test.describe("Device verification", { tag: "@no-webkit" }, () => {
             // For now we don't check that the backup key is in cache because it's a bit flaky,
             // as we need to wait for the secret gossiping to happen.
             await checkDeviceIsConnectedKeyBackup(app, expectedBackupVersion, false);
-    });
+        },
+    );
 
     // Regression test for https://github.com/element-hq/element-web/issues/29110
     test("No toast after verification, even if the secrets take a while to arrive", async ({ page, credentials }) => {

res/css/views/rooms/_E2EIcon.pcss

@@ -52,17 +52,10 @@ Please see LICENSE files in the repository root for full details.
 
 .mx_E2EIcon_normal::after {
     mask-image: url("$(res)/img/e2e/normal.svg");
-    background-color: var(--cpd-color-icon-tertiary);
+    background-color: white;
 }
 
 .mx_E2EIcon_verified::after {
     mask-image: url("$(res)/img/e2e/verified.svg");
     background-color: $e2e-verified-color;
 }
-
-// When using the "normal" icon as a background for verified or warning icon, 
-// it should be slightly smaller than the foreground icon
-.mx_E2EIcon_verified, .mx_E2EIcon_warning .mx_E2EIcon_normal::after {
-    mask-size: 90%;
-    background-color: white;
-}