Post-jam Updates

New split mode features:

• Hold shift to lock axis in split mode (makes it easy to align splits across multiple regions)
• Drag to keep splitting (when the axis is locked)

New paint mode feature:

• Drag to paint across multiple regions

Other improvements:

• New checkbox to toggle the lines on/off (hotkey: back-tick (`) or tilde (~))
• Minor performance improvements

Also of note, a color-copy mode was added during the jam's rating-period (after checking with the jam host to confirm that this was fine).

This bumps the amount of dev time to ~7 hours (not including the time spent on the BSP & visual debug code that this is forked from).

Future features under consideration (just daydreaming, no promises) :

• A small undo stack (maybe 12 steps?)
• Change canvas size/aspect ratio
• Export as SVG file
• Save & load (maybe also using localstorage)
• Color palette, like MS Paint
• Grid/interval lock, to make it easier to space things evenly (if desired)
• Image overlay (either to add texture or use a reference image)
• Color-replace action (to swap/adjust all occurrences of a specific color)
• Put actual thought into rendering/redraw performance
• Put actual time into UI
• Put code on github