[Changes]

- Adjusted the score increase rate after round 20.

- Changed the color effect when gaining score.

- The corresponding Hard Mode badge now appears in the shop UI while playing in that mode.

- Added a feature to resize the window in windowed mode.

- Adjusted Challenge Mission rewards for Hard Mode "Challenger".

- Added a mechanic where the Ability "Black Hole" grows when absorbing another black hole.

- Changed the image for the special card "Ability Exchange".

- Changed the unlock method for certain Sticker.

- Added the selling price display for Accessory.

[Bug Fixes]

- Fixed an issue where the Guide appeared with incorrect colors.

- Fixed an issue where balls near the Accessory "Portal" could not be selected.

- Fixed a bug in the shop where ball scores would not increase correctly when holding down the purchase button.

- Fixed an issue where the values for the Challenge Mission "Cue power reduced" did not function correctly.

- Fixed a bug where changing the resolution did not work properly.

- Fixed a bug where switching to windowed mode did not work properly.

- Fixed a bug where the Ability "Black Hole" did not function correctly.

- Fixed a bug where the Sticker "Rich" would not unlock.

- Fixed a bug with the Accessory button.

- Fixed a bug with the activation of the 'Continue' button.

- Fixed a bug where the Hard Mode "Lucky Day" did not function correctly.