this might sound like a strange suggestion, but no other plugin creator has done it, but a plugin that when active it makes a weapon attacks use the ICON for that weapon. this was a very common plugin type in the past and I was shocked to find it's not a thing here.
in past RPGMakers you could find plugins that made it so attacking in SV with "attack" or skills, any time you would see a weapon, it would use your weapons icon as the visuals it would swing, similar to old final fantasy games. here is a video of it in action (skip to 30 seconds in)
Viewing post in RPG MAKER MZ Plugin: Character Fears comments
Hello I understand what you're saying, but visustella made a plugin that does that a while ago. I left you the plugin here:
http://www.yanfly.moe/wiki/Weapon_Animation_VisuStella_MZ
Take care!
Edit:
I don't know if it is compatible with tileset icons directly. Because I don't like working with the battle scene, I don't think I'll be able to make a plugin that allows me to do that.
thanks for the link! I saw that before but I think that is actually different. that uses a custom sprite sheet and as far as I know you can't specify using the icon of the weapon itself. the simplicity of using the icon for the weapon itself is pretty nice. unless the linked asset lets you use 1 frame weapons that are part of an atlas.
it seems like the linked asset mainly lets you use more weapon attack animation sheets (1 sheet with different sprites for weapon) instead of letting you use a sprite sheet (icon set with 1 frame for many weapons) and select 1 frame from that set to use for that weapon. I would love if I'm wrong on that though!