Feature Request: Implement 5% Increment Display Scaling in Linux Mint

Goal:

To enhance the display scaling options in Linux Mint by adding the ability to adjust scaling in 5% increments, similar to the functionality found in the COSMIC and Plasma.

Problem:

Linux Mint currently offers limited options for display scaling. While fractional scaling is available, it is often presented with a fixed set of increments (e.g., 75%, 100%, 125%, 150%, 175%, 200%). This lack of fine-grained control can make it challenging for users to find a scaling level that perfectly suits their display size and resolution, leading to text and UI elements that are either too large or too small for comfortable viewing. Existing workarounds like adjusting font DPI don't provide a consistent scaling of all graphical elements.

Proposed Solution:

Integrate a more granular display scaling option that allows users to select scaling values in 5% increments. This could be implemented as a slider or a numerical input field within the Display settings, providing a wider range of choices between the standard 100% and 200% scaling levels.

Inspired by:

The COSMIC desktop environment's approach to "additional scaling" which allows for adjustments in 5% increments alongside the primary scaling factor offers a good example of how this feature can provide users with more flexibility in tuning their display.

Start with Cinnamon's Display settings and its existing fractional-scaling behavior; the issue names no files or tests. Compare the cited COSMIC and Plasma approaches before deciding how a slider or numerical input should fit the current settings. Done means users can select display scaling in 5% increments with consistent graphical scaling.