Fix the bug that the send button cannot be seen when some models are sent from other apps to this app.

1. The selection outline changes from gradient color to black and white; 2. Support two-finger tap on the canvas to perform the [Undo] operation, which is enabled by default and can be disabled in [Global Settings]; 3. Add a simple denoising function, select the reserved color in the [Selection] [Color Statistics] interface and then remove the remaining colors, and add [Refresh Palette] in [More]; 4. Support directory system, support recycle bin, you can create new directory, move in batches, delete in batches, and the update will take effect immediately; 5. Fixed known issues.

1. The iPad supports portrait upside-down mode, which can solve the situation that may be uncomfortable when charging; 2. Fix known issues.

1. Add the width and height settings of the [Pencil] option in [Brush Settings], that is, the pencil can specify the thickness; 2. Add the [Brush] option in [Brush Settings], select the saved block as the brush content to draw; 3. Click the [Erase] button twice to open the [Erase Settings] interface, where you can set the size of the brush; 4. The auxiliary line of the shape tool is enabled by default; 5. Known bug fixes and detail improvements; 6. It is recommended to use [Press Mode]. In this way, the pencil thickness, eraser size, and block size will display the outline before the operation in [Press Mode]; 7. Apply icon replacement.

1. Add the [Beginner's Guide] button in [Global Settings], which is used to view the function guide of the main interface again; 2. Add the [Document Details] button in the document menu to view the name, width and height information, creation time, and last modification time of the current document; 3. The [Selection] function menu adds the [Horizontal Flip] and [Vertical Flip] functions, which can quickly flip the selection; 4. The [Continuous] option has been added to the [Magic Wand] tool, which is selected by default. When not selected, the Magic Wand tool will select the target color of the entire layer; 5. Adjust the blank area of the preview box; 6. When creating a document with a picture sent by opening an album or other app, a palette is automatically generated, with a maximum of 128 colors; 7. Fixed known issues.

1. Add network line settings in [Global Settings], you can set the width and color of the grid line, and you can set the network line as horizontal and vertical lines, 45 degree lines, iso 2:1 and iso 1:2 network line styles; 2. Fix the problem that the grid frame pointed by the small pen is sometimes not obvious in the pressing mode; 3. A little more pixelated UI.

1. Add the [FAQ] button in the [More] menu to help users familiarize themselves with the use of this application; 2. New users will give guidance steps when they install it for the first time, create a new document for the first time, and open the animation portal for the first time; 3. Reduce the minimum value that the canvas can be reduced; 4. A little more pixelated UI.

1. Add the ruler function, you can set the origin position, add two horizontal and vertical sliders to accurately locate the number of grids, the display is turned on by default, and it can be turned off in the [Global Settings]; 2. Add reminder to draw frequently, which can be turned off in [Global Settings]; 3. Some UI adjustments; 4. Fix the problem that the shape is not refreshed immediately after drawing.

1. Support editing gif files sent by other applications.

new features: 1. When creating a new document, you can specify the background color: transparent, white, black or custom color, the default is transparent; 2. Add [Color Statistics] in the selection function interface, if there is no selection, the entire layer will be counted; 3. Add [Clear Selection Color] and [Fill Color to Fill Selection] functions in the selection function interface; 4. Click the [More] button in the lower right corner to add [Advanced Features], including: (1). [Preview of Jiugongge] function, if a picture can be stretched by Jiugong, this function is available for preview; (2). [Sifang Mosaic Preview] function, mainly used for map tiles; (3). [Border Stroke] function, used for some pixel characters or objects to add a stroke to the outline. 5. Add the document rename function; 6. Add the option to display the main document area in reverse order in [Global Settings]; 7. The hexadecimal RGB color value of the color picker can be entered manually; 8. The palette supports picking colors from other palettes. When the custom palette is selected, click [Pick Color Edit]; 9. Apply UI pixel stylization; 10. Other UI layout adjustments. Fix the bug: 1. Fix the bug that the progress bar can be dragged to 0 when exporting pictures, causing an error; 2. The language of the missing selection function interface [Save selection as a block] is not internationalized.

new function: *1. Animation mode: (1). You can edit the animation by adding key frames on the timeline; (2). Currently, it supports displaying and hiding key attributes and displacement key attributes, and supports popular easing interpolation effects between displacement key frames; (3). Support exporting your work as gif animation. Please note that the gif format does not support translucency, and one pixel can only be completely transparent or completely opaque. 2. Picture block: (1). You can save the entire document or a selection as a block; (2). The block can be pasted into your current creative work, and a new layer will be automatically created for the block; (3). The picture block list is arranged in reverse order, so that the newly added picture blocks are the easiest to use. Fix the bug: 1. Fix the problem of a small probability of undoing and redoing errors when deleting a layer.

1. Add HSV mode to color selection, before only RGB mode; 2. Is the canvas not enough for painting? Are you in a hurry? In the [More] menu, add the [Canvas Size] button, you can expand or shrink the canvas in 8 directions or in the center, and you can undo and redo; 3. Do you feel blocked by your fingers during operation? In the [More] menu, the [Press Mode] button is added to switch to the mode of pressing to trigger operations on the canvas; 4. Optimize the moving and zooming experience of the canvas.

1. Add palette support, there are preset palettes in the application, you can customize the palette and edit it; 2. Added support for 12 languages; 3. Fix known bugs.

1. 画笔可以画直线、矩形（可强制正方形）、椭圆形（可强制圆形）和正多边形； 2. 主界面风格替换，主界面可切换为图标样式； 3. 多语言支持。

新功能: 1. 保存到相册或发送到其它应用程序时，可以指定文件名； 2. 保存到相册或发送到其它应用程序时，可选保存并在下次应用保存的倍率； 3. 网络线每5格加粗，方便计算像素点位置； 4. 添加【选区】功能： 选区模式下，可以进行区域选择； 框选工具用于直接选择或增加或减少矩形区域； 魔棒工具用于直接选择或增加或减少邻近的相同颜色区域； 选择区域后，可以移动选区，也可以把选区内容复制或剪切到新的图层； 5. 渲染效率提升； 6. 应用程序图标更新。 修复问题: 1. 修复点击画笔颜色外框、填充颜色外框等位置穿透到画布问题； 2. 修复采样点放大的显示问题。

1. 如果当前文档有未保存的操作，在切后台时将自动保存； 2. 新增【移动】模式，可以移动画布的内容了； 3. 图层新增合并图层功能； 4. 修复已知的bug。

1. 添加图层功能，图层可以进行的操作有： 新建图层； 拷贝图层； 图层交换层级； 图层连锁； 图层命名； 图层修改透明度； 删除图层。 2. 修复iPad适配问题。

1. 支持颜色透明通道； 2. 优化导入图片时的缩放体验。

1. 添加打开相册的功能，点击【更多】【打开相册】； 2. 保存图片到相册功能，可以保存到自定义名字的相册了； 3. 添加打开其它应用传来的图像功能，并支持截取部分图像，及以采样点的方式采样像素点； 4. 优化画布缩放体验，性能提升； 5. 实时预览的背景支持显示为棋盘格子。

1. 拾色器触摸优化； 2. 添加预览功能，在“更多”中切换预览的显隐，点击预览框，可以设置预览选项； 3. 文档列表中添加“新建”按钮，方便快速开启新的画画； 4. 添加笔擦的连续擦除功能，原笔擦滑动擦除的功能不受影响； 5. 修复已知的bug。