Improve diff colors

[simurai]

This improves the diff colors by making changed text stand out against the background. E.g. 3 changed to 8:

Before	After

Also the diff colors are now semi-transparent so that selection can be seen:

Before	After

Fixes #287

[changeset-bot]

🦋 Changeset detected

Latest commit: dd81ff1

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
github-vscode-theme	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

Colors changed

--- base/themes/dark-colorblind.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/dark-colorblind.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#c3800066",
-    "diffEditor.insertedTextBackground": "#1585fd26",
-    "diffEditor.removedTextBackground": "#c3800026",
+    "diffEditor.insertedLineBackground": "#1d69e033",
+    "diffEditor.insertedTextBackground": "#1d69e04d",
+    "diffEditor.removedLineBackground": "#a6690033",
+    "diffEditor.removedTextBackground": "#a669004d",
     "scrollbar.shadow": "#484f5833",
--- base/themes/dark-default.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/dark-default.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#f8514966",
-    "diffEditor.insertedTextBackground": "#2ea04326",
-    "diffEditor.removedTextBackground": "#f8514926",
+    "diffEditor.insertedLineBackground": "#23863633",
+    "diffEditor.insertedTextBackground": "#2386364d",
+    "diffEditor.removedLineBackground": "#da363333",
+    "diffEditor.removedTextBackground": "#da36334d",
     "scrollbar.shadow": "#484f5833",
--- base/themes/dark-dimmed.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/dark-dimmed.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#e5534b66",
-    "diffEditor.insertedTextBackground": "#46954a26",
-    "diffEditor.removedTextBackground": "#e5534b26",
+    "diffEditor.insertedLineBackground": "#347d3933",
+    "diffEditor.insertedTextBackground": "#347d394d",
+    "diffEditor.removedLineBackground": "#c93c3733",
+    "diffEditor.removedTextBackground": "#c93c374d",
     "scrollbar.shadow": "#545d6833",
--- base/themes/dark-high-contrast.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/dark-high-contrast.json	2022-07-12 08:06:25.991474685 +0000
@@ -131,4 +131,6 @@
     "editorGutter.deletedBackground": "#ff6a69",
-    "diffEditor.insertedTextBackground": "#09b43a26",
-    "diffEditor.removedTextBackground": "#ff6a6926",
+    "diffEditor.insertedLineBackground": "#09b43a33",
+    "diffEditor.insertedTextBackground": "#09b43a4d",
+    "diffEditor.removedLineBackground": "#ff6a6933",
+    "diffEditor.removedTextBackground": "#ff6a694d",
     "scrollbar.shadow": "#7a828e33",
--- base/themes/light-colorblind.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/light-colorblind.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#e7a10066",
-    "diffEditor.insertedTextBackground": "#c0f6ff",
-    "diffEditor.removedTextBackground": "#fefe48",
+    "diffEditor.insertedLineBackground": "#96e5ff4d",
+    "diffEditor.insertedTextBackground": "#65ccff66",
+    "diffEditor.removedLineBackground": "#fee3254d",
+    "diffEditor.removedTextBackground": "#f8c20066",
     "scrollbar.shadow": "#6e778133",
--- base/themes/light-default.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/light-default.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#ff818266",
-    "diffEditor.insertedTextBackground": "#dafbe1",
-    "diffEditor.removedTextBackground": "#ffebe9",
+    "diffEditor.insertedLineBackground": "#aceebb4d",
+    "diffEditor.insertedTextBackground": "#6fdd8b66",
+    "diffEditor.removedLineBackground": "#ffcecb4d",
+    "diffEditor.removedTextBackground": "#ffaba866",
     "scrollbar.shadow": "#6e778133",
--- base/themes/light-high-contrast.json	2022-07-12 08:06:28.783517083 +0000
+++ themes/light-high-contrast.json	2022-07-12 08:06:25.991474685 +0000
@@ -130,4 +130,6 @@
     "editorGutter.deletedBackground": "#ee5a5d",
-    "diffEditor.insertedTextBackground": "#d2fedb",
-    "diffEditor.removedTextBackground": "#fff0ee",
+    "diffEditor.insertedLineBackground": "#82e5964d",
+    "diffEditor.insertedTextBackground": "#43c66366",
+    "diffEditor.removedLineBackground": "#ffc1bc4d",
+    "diffEditor.removedTextBackground": "#ff8e8a66",
     "scrollbar.shadow": "#67707a33",