More improvements

Version 1.33.0 contains a bunch of small improvements, including better support for dark mode and more transparency about how the points are impacted when help is used. The changes in detail:

• The “dimmed” appearance for dark mode is a bit darker, the “dark” appearance is much darker. With the “dark” setting, the blocks in a puzzle are now darker than the empty squares, instead of being lighter than the squares as they were before.
• The scoring algorithm has been tweaked to reduce the rate at which the scores get smaller as the elapsed time grows larger. For puzzles that take a long time to solve, the points will now be more generous than previously.
• The page showing the points scored for a solved puzzle now also reveals the points lost due to using the help.
• If a row or column with a hidden sum has two blocks present, empty squares can be changed to number squares by tapping the space where the sum value would normally be shown, just like this can be done for rows or columns with visible sum values.
• Improvements to the way the buttons “Get puzzling” and “Next puzzle” decide which puzzle to launch. The buttons now take the player back to puzzles that were previously started (and then paused), in preference to starting a new puzzle.
• If players switch from one device to another for playing Random Play, the leaderboard total is now picked up in a more reliable way, allowing a more seamless continuation of play.
• Fixed a problem with the Random Play simulator by which the leaderboard was not being updated correctly after the simulator had been reset.
• Corrections to some of the help explanations that may be encountered when playing Random Play in expert mode.