VisualTeX 1.2.3

中文

应用插件安装失败与打开失败的问题：修改了安装包的检测逻辑，增加了兼容性，对于mac端提高了前端页面无法渲染的纠错能力。
公式输入与光标稳定性：修复结构占位符在删除、点击选择和连续输入时丢失或错位的问题；改善重音、嵌套命令、字体命令、原生命令补全、多行编辑与选区恢复，减少光标跳错位置或输入被意外覆盖。
经典布局与面板显示：修复不同窗口尺寸下底部公式工具栏、LaTeX 源码面板和编辑区域挤压、遮挡或公式行消失的问题；命令候选框和“操作逻辑”弹窗现在始终显示在编辑面板上方。
公式排版与占位符显示：修复组合重音、结构光标、工具栏预览和自定义磁贴占位符的基线、居中和可见性问题；改进 Word 风格的公式行编辑体验。
数学输入规范：微分元现在输出为 \mathrm{d}x，只让 d 保持正体；xx 不再被误转为乘号；修复嵌套结构中的自动跳出上下文和快捷输入冲突。
Office 与应用跳转：恢复 macOS Office 插件打开 VisualTeX 的 URL 跳转，并改进 Office 窗口与主应用之间的主题同步、首次使用引导和导出流程。
主题与界面对比度：优化暖米色主题的纸张层级、磁贴、悬停和公式行状态，提升深色主题和编辑区域的可读性。

经典布局：新增可折叠的底部公式工具栏与 LaTeX 源码停靠区，并支持与标准布局自由切换；新安装默认使用经典布局。
更多主题：新增暖米色、深紫色和深绿色主题，默认主题为蓝白浅色；Office 编辑窗口可同步主题。
常用数学输入自动转义：新增总开关，并扩展 alpha、>=、pp、ss、mm、dd、eq 等常用输入；关闭后所有无反斜杠快捷转义都会停用。
公式工具与矩阵：新增公式磁贴、紧凑工具栏、1×1 至 10×10 矩阵选择器、文档级左/中/右对齐控制，以及更完整的结构点击和多行选择操作。
导出能力：可直接导出 Markdown、SVG 和 PNG，并记住上次选择的导出目录；补充首次使用引导、更新说明和相关回归测试。
README 与界面展示：更新中英文功能说明和五张最新主题、布局截图，并将 QQ 交流群信息移至正文开头。

Formula input and caret stability: Fixed structural placeholders disappearing or shifting during deletion, pointer selection, and continuous input. Improved accents, nested commands, font commands, native completion, multiline editing, and selection restoration to prevent misplaced carets and accidental replacement.
Classic layout and panel visibility: Fixed bottom formula tools, LaTeX source panels, and editor regions being compressed, covered, or losing formula rows at different window sizes. Command suggestions and the Input Behaviour popover now stay above editor panes.
Formula rendering and placeholders: Corrected baselines, centring, and visibility for combining accents, structural carets, toolbar previews, and custom tile placeholders. Word-like formula-line editing is more consistent.
Mathematical input correctness: Differential elements now use \mathrm{d}x, keeping only d upright. xx is no longer converted into multiplication. Nested auto-exit context and shortcut conflicts have also been corrected.
Office and application routing: Restored macOS Office add-in URL routing into VisualTeX and improved theme synchronisation, first-run onboarding, and export workflows between Office windows and the main application.
Theme contrast and readability: Refined paper hierarchy, tiles, hover states, and formula-row states in the warm beige theme, with clearer editing surfaces across dark themes.

Classic workspace layout: Added a collapsible bottom dock for formula tools and LaTeX source, with switching between standard and classic layouts. Fresh installations now default to the classic layout.
More colour themes: Added warm beige, deep purple, and deep green themes. The default is the blue-and-white light theme, and Office editing windows can synchronise the selected theme.
Common math input conversion: Added a master switch and expanded shortcuts including alpha, >=, pp, ss, mm, dd, and eq. Disabling the option turns off all no-backslash conversions.
Formula tools and matrices: Added formula tiles, a compact toolbar, a 1×1 to 10×10 matrix picker, document-level left/centre/right alignment, structural clicking, and improved multiline selection.
Export workflow: Added direct Markdown, SVG, and PNG export with remembered export directories, plus updated onboarding, release notes, and regression coverage.
README and screenshots: Refreshed bilingual feature documentation and five current layout or theme screenshots, with the QQ community information moved to the beginning of the Chinese section.