implemented file thumbnails and enhanced file type icons, added reusable FileLeading widget, and updated search to support previews
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import 'package:flutter/material.dart';
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import '../../../../api/marianumcloud/webdav/queries/list_files/cacheable_file.dart';
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/// Best-effort mapping from a file's MIME type / extension to a Material
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/// icon that visually hints at its kind. Always returns a sensible fallback.
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IconData iconForFile(CacheableFile file) {
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if (file.isDirectory) return Icons.folder;
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final mime = file.mimeType?.toLowerCase();
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if (mime != null && mime.isNotEmpty) {
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final byMime = _iconForMime(mime);
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if (byMime != null) return byMime;
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}
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final ext = _extensionOf(file.name);
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if (ext != null) {
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final byExt = _extensionIcons[ext];
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if (byExt != null) return byExt;
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}
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return Icons.insert_drive_file_outlined;
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}
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String? _extensionOf(String name) {
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final dot = name.lastIndexOf('.');
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if (dot <= 0 || dot == name.length - 1) return null;
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return name.substring(dot + 1).toLowerCase();
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}
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IconData? _iconForMime(String mime) {
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// Major media types first — these cover the long tail of variants.
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if (mime.startsWith('image/')) return Icons.image_outlined;
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if (mime.startsWith('video/')) return Icons.movie_outlined;
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if (mime.startsWith('audio/')) return Icons.audiotrack;
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if (mime.startsWith('font/')) return Icons.font_download_outlined;
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if (mime.startsWith('text/x-') ||
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mime.startsWith('text/javascript') ||
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mime.startsWith('text/css') ||
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mime.startsWith('text/html')) {
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return Icons.code;
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}
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if (mime.startsWith('text/')) return Icons.article_outlined;
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// Specific application/* types.
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const map = <String, IconData>{
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'application/pdf': Icons.picture_as_pdf_outlined,
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// Word processing
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'application/msword': Icons.description_outlined,
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'application/vnd.openxmlformats-officedocument.wordprocessingml.document':
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Icons.description_outlined,
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'application/vnd.oasis.opendocument.text': Icons.description_outlined,
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'application/rtf': Icons.description_outlined,
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// Spreadsheets
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'application/vnd.ms-excel': Icons.table_chart_outlined,
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'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet':
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Icons.table_chart_outlined,
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'application/vnd.oasis.opendocument.spreadsheet':
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Icons.table_chart_outlined,
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'application/vnd.ms-excel.sheet.macroenabled.12':
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Icons.table_chart_outlined,
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// Presentations
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'application/vnd.ms-powerpoint': Icons.slideshow_outlined,
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'application/vnd.openxmlformats-officedocument.presentationml.presentation':
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Icons.slideshow_outlined,
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'application/vnd.oasis.opendocument.presentation': Icons.slideshow_outlined,
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// Archives
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'application/zip': Icons.folder_zip_outlined,
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'application/x-zip-compressed': Icons.folder_zip_outlined,
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'application/x-rar-compressed': Icons.folder_zip_outlined,
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'application/vnd.rar': Icons.folder_zip_outlined,
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'application/x-7z-compressed': Icons.folder_zip_outlined,
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'application/x-tar': Icons.folder_zip_outlined,
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'application/gzip': Icons.folder_zip_outlined,
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'application/x-bzip2': Icons.folder_zip_outlined,
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'application/x-xz': Icons.folder_zip_outlined,
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'application/zstd': Icons.folder_zip_outlined,
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// Code / structured data
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'application/json': Icons.code,
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'application/ld+json': Icons.code,
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'application/xml': Icons.code,
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'application/x-yaml': Icons.code,
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'application/javascript': Icons.code,
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'application/x-sh': Icons.terminal,
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// Calendar / contacts
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'text/calendar': Icons.calendar_month_outlined,
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'text/vcard': Icons.contact_page_outlined,
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// E-books
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'application/epub+zip': Icons.menu_book_outlined,
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'application/x-mobipocket-ebook': Icons.menu_book_outlined,
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// Executables / installers
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'application/x-msdownload': Icons.terminal,
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'application/x-msi': Icons.terminal,
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'application/x-apple-diskimage': Icons.album_outlined,
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'application/vnd.android.package-archive': Icons.android_outlined,
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'application/octet-stream': Icons.insert_drive_file_outlined,
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// Databases
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'application/x-sqlite3': Icons.storage_outlined,
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'application/vnd.sqlite3': Icons.storage_outlined,
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// 3D
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'model/gltf-binary': Icons.view_in_ar_outlined,
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'model/gltf+json': Icons.view_in_ar_outlined,
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'model/stl': Icons.view_in_ar_outlined,
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'model/obj': Icons.view_in_ar_outlined,
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};
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return map[mime];
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}
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const _extensionIcons = <String, IconData>{
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// Images
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'jpg': Icons.image_outlined, 'jpeg': Icons.image_outlined,
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'png': Icons.image_outlined, 'gif': Icons.image_outlined,
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'webp': Icons.image_outlined, 'bmp': Icons.image_outlined,
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'tif': Icons.image_outlined, 'tiff': Icons.image_outlined,
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'heic': Icons.image_outlined, 'heif': Icons.image_outlined,
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'avif': Icons.image_outlined, 'ico': Icons.image_outlined,
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'raw': Icons.image_outlined, 'cr2': Icons.image_outlined,
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'nef': Icons.image_outlined, 'arw': Icons.image_outlined,
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'svg': Icons.gesture_outlined, 'eps': Icons.gesture_outlined,
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'ai': Icons.gesture_outlined,
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// Video
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'mp4': Icons.movie_outlined, 'm4v': Icons.movie_outlined,
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'mov': Icons.movie_outlined, 'mkv': Icons.movie_outlined,
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'avi': Icons.movie_outlined, 'webm': Icons.movie_outlined,
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'flv': Icons.movie_outlined, 'wmv': Icons.movie_outlined,
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'3gp': Icons.movie_outlined, 'mpg': Icons.movie_outlined,
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'mpeg': Icons.movie_outlined, 'ogv': Icons.movie_outlined,
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// Audio
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'mp3': Icons.audiotrack, 'm4a': Icons.audiotrack, 'aac': Icons.audiotrack,
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'wav': Icons.audiotrack, 'flac': Icons.audiotrack, 'ogg': Icons.audiotrack,
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'oga': Icons.audiotrack, 'opus': Icons.audiotrack, 'wma': Icons.audiotrack,
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'aiff': Icons.audiotrack, 'aif': Icons.audiotrack,
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// Music notation
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'mscz': Icons.music_note, 'mscx': Icons.music_note,
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'musicxml': Icons.music_note, 'mxl': Icons.music_note,
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'midi': Icons.music_note, 'mid': Icons.music_note,
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// PDF
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'pdf': Icons.picture_as_pdf_outlined,
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// Word
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'doc': Icons.description_outlined, 'docx': Icons.description_outlined,
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'odt': Icons.description_outlined, 'rtf': Icons.description_outlined,
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'pages': Icons.description_outlined,
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// Spreadsheets
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'xls': Icons.table_chart_outlined, 'xlsx': Icons.table_chart_outlined,
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'xlsm': Icons.table_chart_outlined, 'ods': Icons.table_chart_outlined,
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'csv': Icons.table_chart_outlined, 'tsv': Icons.table_chart_outlined,
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'numbers': Icons.table_chart_outlined,
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// Presentations
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'ppt': Icons.slideshow_outlined, 'pptx': Icons.slideshow_outlined,
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'pps': Icons.slideshow_outlined, 'odp': Icons.slideshow_outlined,
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'key': Icons.slideshow_outlined,
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// Plain text / notes
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'txt': Icons.article_outlined, 'md': Icons.article_outlined,
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'markdown': Icons.article_outlined, 'log': Icons.article_outlined,
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'rst': Icons.article_outlined,
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// Code
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'html': Icons.code, 'htm': Icons.code, 'xhtml': Icons.code,
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'css': Icons.code, 'scss': Icons.code, 'sass': Icons.code, 'less': Icons.code,
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'js': Icons.code, 'mjs': Icons.code, 'cjs': Icons.code,
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'ts': Icons.code, 'jsx': Icons.code, 'tsx': Icons.code,
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'dart': Icons.code, 'java': Icons.code, 'kt': Icons.code, 'kts': Icons.code,
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'py': Icons.code, 'rb': Icons.code, 'go': Icons.code, 'rs': Icons.code,
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'c': Icons.code, 'cpp': Icons.code, 'cc': Icons.code, 'cxx': Icons.code,
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'h': Icons.code, 'hpp': Icons.code, 'cs': Icons.code, 'm': Icons.code,
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'mm': Icons.code, 'php': Icons.code, 'pl': Icons.code, 'lua': Icons.code,
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'r': Icons.code, 'swift': Icons.code, 'scala': Icons.code, 'groovy': Icons.code,
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'sql': Icons.code, 'graphql': Icons.code, 'gql': Icons.code,
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'json': Icons.code, 'json5': Icons.code, 'xml': Icons.code,
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'yaml': Icons.code, 'yml': Icons.code,
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// Shell
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'sh': Icons.terminal, 'bash': Icons.terminal, 'zsh': Icons.terminal,
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'fish': Icons.terminal, 'ps1': Icons.terminal, 'bat': Icons.terminal,
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'cmd': Icons.terminal,
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// Archives
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'zip': Icons.folder_zip_outlined, 'rar': Icons.folder_zip_outlined,
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'7z': Icons.folder_zip_outlined, 'tar': Icons.folder_zip_outlined,
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'gz': Icons.folder_zip_outlined, 'bz2': Icons.folder_zip_outlined,
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'xz': Icons.folder_zip_outlined, 'tgz': Icons.folder_zip_outlined,
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'zst': Icons.folder_zip_outlined,
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// Config / settings (the "gear" cases)
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'ini': Icons.settings_outlined, 'cfg': Icons.settings_outlined,
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'conf': Icons.settings_outlined, 'env': Icons.settings_outlined,
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'toml': Icons.settings_outlined, 'plist': Icons.settings_outlined,
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'properties': Icons.settings_outlined,
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'editorconfig': Icons.settings_outlined,
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'gitignore': Icons.settings_outlined,
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'gitattributes': Icons.settings_outlined,
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'dockerignore': Icons.settings_outlined,
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'dockerfile': Icons.settings_outlined,
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// Fonts
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'ttf': Icons.font_download_outlined, 'otf': Icons.font_download_outlined,
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'woff': Icons.font_download_outlined, 'woff2': Icons.font_download_outlined,
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'eot': Icons.font_download_outlined,
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// Calendar / contacts
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'ics': Icons.calendar_month_outlined, 'ical': Icons.calendar_month_outlined,
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'vcf': Icons.contact_page_outlined, 'vcard': Icons.contact_page_outlined,
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// E-books
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'epub': Icons.menu_book_outlined, 'mobi': Icons.menu_book_outlined,
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'azw': Icons.menu_book_outlined, 'azw3': Icons.menu_book_outlined,
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// 3D
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'stl': Icons.view_in_ar_outlined, 'obj': Icons.view_in_ar_outlined,
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'fbx': Icons.view_in_ar_outlined, 'blend': Icons.view_in_ar_outlined,
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'glb': Icons.view_in_ar_outlined, 'gltf': Icons.view_in_ar_outlined,
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'3ds': Icons.view_in_ar_outlined,
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// Executables / packages
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'exe': Icons.terminal, 'msi': Icons.terminal,
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'app': Icons.terminal, 'deb': Icons.terminal, 'rpm': Icons.terminal,
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'apk': Icons.android_outlined, 'ipa': Icons.terminal,
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'appimage': Icons.terminal,
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// Disc images
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'iso': Icons.album_outlined, 'img': Icons.album_outlined,
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'dmg': Icons.album_outlined,
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// Databases
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'db': Icons.storage_outlined, 'sqlite': Icons.storage_outlined,
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'sqlite3': Icons.storage_outlined,
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};
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