Board Thread:Questions and Answers/@comment-50.205.100.187-20181015022403/@comment-26091666-20181016095219

The size (or dimensions/resolutions) of the game window are scaled depending on the size of the browser, assuming you are running the game inside a browser. Theoretically, by resizing the size of the browser window it should also resize the game resolution.

Alternatively, for predominantly Chrome and Firefox, you might be able to get by with installing (and/or tweaking) a CSS which handles the sizes. You'll need something like a Stylus (which is available for the two aforementioned browsers as well) and use something like this: https://userstyles.org/styles/163415/kancolle-full-for-2nd-sequence