Issue Summary

With the Paint Bucket Tool selected it's possible to invoke the Quick Sizing interface, but it doesn't seem to actually change any parameters except the Dotted Cursor radius, although its radius doesn't represent anything related to this tool and probably shouldn't be displayed at all.

Actual Results

With the Paint Bucket Tool selected Shift+LMB Dragging invokes the size-feather circle. It's possible to change the radius of that circle, but the tool parameters doesn't change. Ctrl+LMB Dragging also invokes the circle, but its radius couldn't be changed. Dotted Cursor is displayed, although not being useful.

Expected Results

1. Quick Sizing should actually adjust the tool parameters (Color Tolerance), or be disabled for this tool.
2. Dotted Cursor probably shouldn't be displayed for the Paint Bucket Tool, since it doesn't represent any parameters of that tool. Compare with the Eyedropper Tool.

Steps to reproduce

Ensure that Dotted Cursor and Use Quick Sizing options are enabled, select the Paint Bucket Tool, try to use Quick Sizing (Shift+LMB Dragging and Ctrl+LMB Dragging), and observe Dotted Cursor.

System Information

• Pencil2D Version: Nightly Build 2019-02-27 (dc86a40), also checked on 0.6.2 Stable
• Operating System: Windows 7 x64
• RAM Size: 4GB
• Graphics Tablet: the issue behaves the same with a mouse or tablet