更新紀錄

1. Added chart tool & several chart classes 2. Optimized slides view 3. Optimized SVG parsing 4. Optimized undo & redo functions 5. Fixed known issues

1. Added support for multi-page artwork documents 2. Added slides view for flexible page switching 3. Optimized UI controls with round-corner style 4. Optimized icons 5. Fixed known issues * Optimized bootstrapping installer

1. Added support for SVG import & edit 2. Added special character library & diagram library 3. Added two UI themes, optimized existing themes 4. Added artwork outline explorer 5. Optimized layers view to support selecting & previewing cascaded layers 6. Optimized pen tool & isogon tool 7. Optimized undo & redo mechanism 8. Optimized some UI controls 9. Removed pipeline class