diff --git a/images/lifecycle.png b/images/lifecycle.png
index 68bf3a4e..fe193628 100644
Binary files a/images/lifecycle.png and b/images/lifecycle.png differ
diff --git a/images/lifecycle.svg b/images/lifecycle.svg
index 7e6ec6ab..de9af18c 100644
--- a/images/lifecycle.svg
+++ b/images/lifecycle.svg
@@ -1,5 +1,8 @@
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+<!--1548 = 300*4+116*3, dx = 416, block_width = 300. -->
+<!--export by a [online tool](https://vincerubinetti.github.io/svg-to-png/) with firefox 118.0.1. (not works on chromium 118.0.5993.54)-->
+<!--many tools, like krita, JB-idea, the [first result from google](https://svgtopng.com/), are not supporting [dominant-baseline](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/dominant-baseline) and will mess up words and gives me OCD. -->
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@@ -10,39 +13,110 @@
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  <!-- Generator: Sketch 56.3 (81716) - https://sketch.com -->
+ <!-- re-write by gedit -->
+
  <title id="title7020">images/lifecycle</title>
  <desc id="desc7022">Created with Sketch.</desc>
+
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+   <g id="rectangles">
+    <g id="untracked">
+     <rect x="0" y="0" width="300" height="100" fill="#efefe7" />
+     <text x="150" y="50" font-family="Arial" font-size="36" fill="black" text-anchor="middle" dominant-baseline="middle">Untracked</text>
+     <text x="150" y="80" font-family="Arial" font-size="16" fill="black" text-anchor="middle" dominant-baseline="middle">未跟踪</text>
+    </g>
+
+    <g id="unmodified" transform="translate(416, 0)">
+     <rect x="0" y="0" width="300" height="100" fill="#00909a" />
+     <text x="150" y="50" font-family="Arial" font-size="36" fill="white" text-anchor="middle" dominant-baseline="middle">Unmodified</text>
+     <text x="150" y="80" font-family="Arial" font-size="16" fill="white" text-anchor="middle" dominant-baseline="middle">未修改</text>
+    </g>
+
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+     <rect x="0" y="0" width="300" height="100" fill="#cd9f00" />
+     <text x="150" y="50" font-family="Arial" font-size="36" fill="white" text-anchor="middle" dominant-baseline="middle">Modified</text>
+     <text x="150" y="80" font-family="Arial" font-size="16" fill="white" text-anchor="middle" dominant-baseline="middle">已修改</text>
+    </g>
+
+    <g id="modified" transform="translate(1248, 0)">
+     <rect x="0" y="0" width="300" height="100" fill="#f44d27" />
+     <text x="150" y="50" font-family="Arial" font-size="36" fill="white" text-anchor="middle" dominant-baseline="middle">Staged</text>
+     <text x="150" y="80" font-family="Arial" font-size="16" fill="white" text-anchor="middle" dominant-baseline="middle">已暂存</text>
+    </g>
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+
+   <g id="lines">
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+
+   <!-- 还是使用group方便啊... -->
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+    <line x1="0" y1="0" x2="1168" y2="0" stroke="#8f8981" stroke-width="40" />
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+     Add the file
+     <tspan font-size="16" dominant-baseline="ideographic">
+      跟踪文件
+     </tspan>
+    </text>
    </g>
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+
+   <g id="Edit-the-file" transform="translate(566, 350)">
+    <line x1="0" y1="0" x2="336" y2="0" stroke="#8f8981" stroke-width="40" />
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+    </g>
+    <text x="20" y="0" font-family="Arial" font-size="32" fill="white" text-anchor="start" dominant-baseline="central">
+     Edit the file
+     <tspan font-size="16" dominant-baseline="ideographic">
+      编辑文件
+     </tspan>
+    </text>
+   </g>
+
+   <g id="Stage-the-file" transform="translate(982, 400)">
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+    <g transform="translate(416, 0)">
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+    </g>
+    <text x="20" y="0" font-family="Arial" font-size="32" fill="white" text-anchor="start" dominant-baseline="central">
+     Stage the file
+     <tspan font-size="16" dominant-baseline="ideographic">
+      暂存已修改的文件
+     </tspan>
+    </text>
+   </g>
+
+   <g id="Remove-the-file" transform="translate(150, 450)">
+    <line x1="80" y1="0" x2="416" y2="0" stroke="#8f8981" stroke-width="40" />
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+    </g>
+    <text x="396" y="0" font-family="Arial" font-size="32" fill="white" text-anchor="end" dominant-baseline="central">
+     Remove the file
+     <tspan font-size="16" dominant-baseline="ideographic">
+      移除文件
+     </tspan>
+    </text>
+   </g>
+
+   <g id="Commit" transform="translate(566, 600)">
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+    <text x="812" y="0" font-family="Arial" font-size="32" fill="white" text-anchor="end" dominant-baseline="central">
+     Commit
+     <tspan font-size="16" dominant-baseline="ideographic">
+      提交
+     </tspan>
+    </text>
    </g>
   </g>
  </g>