some image as button handling - may not be valid due to missing end etc - pasted/cut from larger code blocks

ImageAsInvisibleButton.lua

for k, v in ipairs(self.tabs) do
                        if(v.image ~= nil) then
                            GUI:Image(v.image.path, v.image.width, v.image.height)
                            if(v.tooltip ~= nil) then
                                if(GUI:IsItemHovered()) then
                                    GUI:SetTooltip(v.tooltip)
                                end
                            end
                            GUI:SetCursorPos(0, 0)
                            GUI:BeginChild('##<replace me>' .. v.name .. 'Image', v.image.width, v.image.height, false, GUI.WindowFlags_NoResize)
                            if(GUI:InvisibleButton("##<replace me>" .. v.name .. "Button", v.image.width, v.image.height)) then
                                self.currentTab = k
                                log("Set current tab to " .. v.name)
                            end

                            GUI:EndChild()
end
end

NormalButtonWithImage

for k, v in ipairs(self.tabs) do
                        if(v.image ~= nil) then
                            GUI:PushStyleColor(GUI.Col_Button, 0,0,0,0)
                            GUI:PushStyleColor(GUI.Col_ButtonHovered, 0,0,0,0.6)
                            GUI:PushStyleColor(GUI.Col_ButtonActive, 0,0,0,0.8)
                            -- note this line has some additional colour stuff I was using while testing pre-using pushstyle
                            if(GUI:ImageButton("##<replace me>" .. v.name .. "Button", v.image.path, v.image.width, v.image.height, 0, 0, 1, 1, 0, 0, 0, 0, 0)) then
                                self.currentTab = k
                            end
                            GUI:PopStyleColor(3)
                            
                            if(v.tooltip ~= nil) then
                                if(GUI:IsItemHovered()) then
                                    GUI:SetTooltip(v.tooltip)
                                end
                            end
                            end

tabs.lua

self.tabs = {
    [1] = {
        name = "General",
        image = {
            path = self.paths.image .. "image.png",
            width = 180,
            height = 180,
        },
        tooltip = "General Settings",
    },
}