I have wishes for additional visualisers;

C64 font:

The c64 uses fonts - tiles of 8x8 pixels. They can be hires (8x8 pixels) and multicolour (4x8 pixels, where two bits define one out of 4 colours - just like the sprites already in place).

It would be good to be able to select a range. A full set is $0800 bytes, but not all projects use a full set, so a start and end would give the full flexibility to capture all permutations.

More on visualisers:

• The sprite visualiser works fine, but also here there is a need for being able to select a range of sprites, rather than selecting them individually. (I guess this would call for a setting that defined the range with or without a padding byte between sprites).
• We have had a discussion on structs before and I know you moved it to the TO DO list. In general a soft introduction could be to have a visualiser optionally tied to a struct definition, where data would be formatted as per the struct. Applying a visualiser to a location in memory and defining it as a sprite or a font, I would always have the data structured as per the standard formatting for sprites and fonts. This introduction would not push for a need to introduce a struct editor GUI nor the complexity or variable lengths and optional elements just yet, as we discussed before.
• I would also like you to consider an option to hide the data which is already displayed in the form of a graphical component. In practice, showing a font graphically, there is no added value for me to scroll through the data as well. The visualiser already shows it, just not also in the rather redundant data form. (I am aware this makes the struct suggestion above less relevant ;-)