refactor: move around a bunch of config code, start grouping changes

TODO: Update built-in configs!
TODO: Update docs; add section for config file

16 files changed, 415 insertions, 330 deletions

diff --git a/src/canvas/styling.rs b/src/canvas/styling.rs
index 88273352..47aa1846 100644
--- a/src/canvas/styling.rs
+++ b/src/canvas/styling.rs
@@ -6,7 +6,10 @@ use tui::style::{Color, Style};
 
 use super::ColourScheme;
 pub use crate::options::Config;
-use crate::{constants::*, options::colours::ConfigColours, utils::error};
+use crate::{
+    options::config::{colours::ColourConfig, palettes::*},
+    utils::error,
+};
 
 pub struct CanvasStyling {
     pub currently_selected_text_colour: Color,
@@ -154,7 +157,7 @@ impl CanvasStyling {
         Ok(canvas_colours)
     }
 
-    pub fn set_colours_from_palette(&mut self, colours: &ConfigColours) -> anyhow::Result<()> {
+    pub fn set_colours_from_palette(&mut self, colours: &ColourConfig) -> anyhow::Result<()> {
         // CPU
         try_set_colour!(self.avg_colour_style, colours, avg_cpu_color);
         try_set_colour!(self.all_colour_style, colours, all_cpu_color);
diff --git a/src/constants.rs b/src/constants.rs
index eb185779..2c8742d9 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -1,7 +1,5 @@
 use tui::widgets::Borders;
 
-use crate::options::ConfigColours;
-
 // Default widget ID
 pub const DEFAULT_WIDGET_ID: u64 = 56709;
 
@@ -23,260 +21,6 @@ pub const TIME_LABEL_HEIGHT_LIMIT: u16 = 7;
 // Side borders
 pub const SIDE_BORDERS: Borders = Borders::LEFT.union(Borders::RIGHT);
 
-// Colour profiles
-// TODO: Generate these with a macro or something...
-pub fn default_light_mode_colour_palette() -> ConfigColours {
-    ConfigColours {
-        text_color: Some("black".into()),
-        border_color: Some("black".into()),
-        table_header_color: Some("black".into()),
-        widget_title_color: Some("black".into()),
-        selected_text_color: Some("white".into()),
-        graph_color: Some("black".into()),
-        disabled_text_color: Some("gray".into()),
-        ram_color: Some("blue".into()),
-        #[cfg(not(target_os = "windows"))]
-        cache_color: Some("LightRed".into()),
-        swap_color: Some("red".into()),
-        arc_color: Some("LightBlue".into()),
-        gpu_core_colors: Some(vec![
-            "LightGreen".into(),
-            "LightCyan".into(),
-            "LightRed".into(),
-            "Cyan".into(),
-            "Green".into(),
-            "Blue".into(),
-            "Red".into(),
-        ]),
-        rx_color: Some("blue".into()),
-        tx_color: Some("red".into()),
-        rx_total_color: Some("LightBlue".into()),
-        tx_total_color: Some("LightRed".into()),
-        cpu_core_colors: Some(vec![
-            "LightMagenta".into(),
-            "LightBlue".into(),
-            "LightRed".into(),
-            "Cyan".into(),
-            "Green".into(),
-            "Blue".into(),
-            "Red".into(),
-        ]),
-        ..ConfigColours::default()
-    }
-}
-
-pub fn gruvbox_colour_palette() -> ConfigColours {
-    ConfigColours {
-        table_header_color: Some("#83a598".into()),
-        all_cpu_color: Some("#8ec07c".into()),
-        avg_cpu_color: Some("#fb4934".into()),
-        cpu_core_colors: Some(vec![
-            "#cc241d".into(),
-            "#98971a".into(),
-            "#d79921".into(),
-            "#458588".into(),
-            "#b16286".into(),
-            "#689d6a".into(),
-            "#fe8019".into(),
-            "#b8bb26".into(),
-            "#fabd2f".into(),
-            "#83a598".into(),
-            "#d3869b".into(),
-            "#d65d0e".into(),
-            "#9d0006".into(),
-            "#79740e".into(),
-            "#b57614".into(),
-            "#076678".into(),
-            "#8f3f71".into(),
-            "#427b58".into(),
-            "#d65d03".into(),
-            "#af3a03".into(),
-        ]),
-        ram_color: Some("#8ec07c".into()),
-        #[cfg(not(target_os = "windows"))]
-        cache_color: Some("#b16286".into()),
-        swap_color: Some("#fabd2f".into()),
-        arc_color: Some("#689d6a".into()),
-        gpu_core_colors: Some(vec![
-            "#d79921".into(),
-            "#458588".into(),
-            "#b16286".into(),
-            "#fe8019".into(),
-            "#b8bb26".into(),
-            "#cc241d".into(),
-            "#98971a".into(),
-        ]),
-        rx_color: Some("#8ec07c".into()),
-        tx_color: Some("#fabd2f".into()),
-        rx_total_color: Some("#689d6a".into()),
-        tx_total_color: Some("#d79921".into()),
-        border_color: Some("#ebdbb2".into()),
-        highlighted_border_color: Some("#fe8019".into()),
-        disabled_text_color: Some("#665c54".into()),
-        text_color: Some("#ebdbb2".into()),
-        selected_text_color: Some("#1d2021".into()),
-        selected_bg_color: Some("#ebdbb2".into()),
-        widget_title_color: Some("#ebdbb2".into()),
-        graph_color: Some("#ebdbb2".into()),
-        high_battery_color: Some("#98971a".into()),
-        medium_battery_color: Some("#fabd2f".into()),
-        low_battery_color: Some("#fb4934".into()),
-    }
-}
-
-pub fn gruvbox_light_colour_palette() -> ConfigColours {
-    ConfigColours {
-        table_header_color: Some("#076678".into()),
-        all_cpu_color: Some("#8ec07c".into()),
-        avg_cpu_color: Some("#fb4934".into()),
-        cpu_core_colors: Some(vec![
-            "#cc241d".into(),
-            "#98971a".into(),
-            "#d79921".into(),
-            "#458588".into(),
-            "#b16286".into(),
-            "#689d6a".into(),
-            "#fe8019".into(),
-            "#b8bb26".into(),
-            "#fabd2f".into(),
-            "#83a598".into(),
-            "#d3869b".into(),
-            "#d65d0e".into(),
-            "#9d0006".into(),
-            "#79740e".into(),
-            "#b57614".into(),
-            "#076678".into(),
-            "#8f3f71".into(),
-            "#427b58".into(),
-            "#d65d03".into(),
-            "#af3a03".into(),
-        ]),
-        ram_color: Some("#427b58".into()),
-        #[cfg(not(target_os = "windows"))]
-        cache_color: Some("#d79921".into()),
-        swap_color: Some("#cc241d".into()),
-        arc_color: Some("#689d6a".into()),
-        gpu_core_colors: Some(vec![
-            "#9d0006".into(),
-            "#98971a".into(),
-            "#d79921".into(),
-            "#458588".into(),
-            "#b16286".into(),
-            "#fe8019".into(),
-            "#b8bb26".into(),
-        ]),
-        rx_color: Some("#427b58".into()),
-        tx_color: Some("#cc241d".into()),
-        rx_total_color: Some("#689d6a".into()),
-        tx_total_color: Some("#9d0006".into()),
-        border_color: Some("#3c3836".into()),
-        highlighted_border_color: Some("#af3a03".into()),
-        disabled_text_color: Some("#d5c4a1".into()),
-        text_color: Some("#3c3836".into()),
-        selected_text_color: Some("#ebdbb2".into()),
-        selected_bg_color: Some("#3c3836".into()),
-        widget_title_color: Some("#3c3836".into()),
-        graph_color: Some("#3c3836".into()),
-        high_battery_color: Some("#98971a".into()),
-        medium_battery_color: Some("#d79921".into()),
-        low_battery_color: Some("#cc241d".into()),
-    }
-}
-
-pub fn nord_colour_palette() -> ConfigColours {
-    ConfigColours {
-        table_header_color: Some("#81a1c1".into()),
-        all_cpu_color: Some("#88c0d0".into()),
-        avg_cpu_color: Some("#8fbcbb".into()),
-        cpu_core_colors: Some(vec![
-            "#5e81ac".into(),
-            "#81a1c1".into(),
-            "#d8dee9".into(),
-            "#b48ead".into(),
-            "#a3be8c".into(),
-            "#ebcb8b".into(),
-            "#d08770".into(),
-            "#bf616a".into(),
-        ]),
-        ram_color: Some("#88c0d0".into()),
-        #[cfg(not(target_os = "windows"))]
-        cache_color: Some("#d8dee9".into()),
-        swap_color: Some("#d08770".into()),
-        arc_color: Some("#5e81ac".into()),
-        gpu_core_colors: Some(vec![
-            "#8fbcbb".into(),
-            "#81a1c1".into(),
-            "#d8dee9".into(),
-            "#b48ead".into(),
-            "#a3be8c".into(),
-            "#ebcb8b".into(),
-            "#bf616a".into(),
-        ]),
-        rx_color: Some("#88c0d0".into()),
-        tx_color: Some("#d08770".into()),
-        rx_total_color: Some("#5e81ac".into()),
-        tx_total_color: Some("#8fbcbb".into()),
-        border_color: Some("#88c0d0".into()),
-        highlighted_border_color: Some("#5e81ac".into()),
-        disabled_text_color: Some("#4c566a".into()),
-        text_color: Some("#e5e9f0".into()),
-        selected_text_color: Some("#2e3440".into()),
-        selected_bg_color: Some("#88c0d0".into()),
-        widget_title_color: Some("#e5e9f0".into()),
-        graph_color: Some("#e5e9f0".into()),
-        high_battery_color: Some("#a3be8c".into()),
-        medium_battery_color: Some("#ebcb8b".into()),
-        low_battery_color: Some("#bf616a".into()),
-    }
-}
-
-pub fn nord_light_colour_palette() -> ConfigColours {
-    ConfigColours {
-        table_header_color: Some("#5e81ac".into()),
-        all_cpu_color: Some("#81a1c1".into()),
-        avg_cpu_color: Some("#8fbcbb".into()),
-        cpu_core_colors: Some(vec![
-            "#5e81ac".into(),
-            "#88c0d0".into(),
-            "#4c566a".into(),
-            "#b48ead".into(),
-            "#a3be8c".into(),
-            "#ebcb8b".into(),
-            "#d08770".into(),
-            "#bf616a".into(),
-        ]),
-        ram_color: Some("#81a1c1".into()),
-        #[cfg(not(target_os = "windows"))]
-        cache_color: Some("#4c566a".into()),
-        swap_color: Some("#d08770".into()),
-        arc_color: Some("#5e81ac".into()),
-        gpu_core_colors: Some(vec![
-            "#8fbcbb".into(),
-            "#88c0d0".into(),
-            "#4c566a".into(),
-            "#b48ead".into(),
-            "#a3be8c".into(),
-            "#ebcb8b".into(),
-            "#bf616a".into(),
-        ]),
-        rx_color: Some("#81a1c1".into()),
-        tx_color: Some("#d08770".into()),
-        rx_total_color: Some("#5e81ac".into()),
-        tx_total_color: Some("#8fbcbb".into()),
-        border_color: Some("#2e3440".into()),
-        highlighted_border_color: Some("#5e81ac".into()),
-        disabled_text_color: Some("#d8dee9".into()),
-        text_color: Some("#2e3440".into()),
-        selected_text_color: Some("#f5f5f5".into()),
-        selected_bg_color: Some("#5e81ac".into()),
-        widget_title_color: Some("#2e3440".into()),
-        graph_color: Some("#2e3440".into()),
-        high_battery_color: Some("#a3be8c".into()),
-        medium_battery_color: Some("#ebcb8b".into()),
-        low_battery_color: Some("#bf616a".into()),
-    }
-}
-
 // Help text
 pub const HELP_CONTENTS_TEXT: [&str; 10] = [
     "Either scroll or press the number key to go to the corresponding help menu section:",
diff --git a/src/options.rs b/src/options.rs
index 902c5c87..4ce31b65 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -3,7 +3,6 @@
 // TODO: Break this apart or do something a bit smarter.
 
 pub mod args;
-pub mod colours;
 pub mod config;
 
 use std::{
@@ -14,7 +13,6 @@ use std::{
 
 use anyhow::{Context, Result};
 use clap::ArgMatches;
-pub use colours::ConfigColours;
 use hashbrown::{HashMap, HashSet};
 use indexmap::IndexSet;
 use regex::Regex;
@@ -112,14 +110,14 @@ pub fn init_app(
     let network_use_binary_prefix = is_flag_enabled!(network_use_binary_prefix, matches, config);
 
     let proc_columns: Option<IndexSet<ProcWidgetColumn>> = {
-        let columns = config.processes.as_ref().map(|cfg| cfg.columns.clone());
+        let columns = config.processes.columns.as_ref();
 
         match columns {
             Some(columns) => {
                 if columns.is_empty() {
                     None
                 } else {
-                    Some(IndexSet::from_iter(columns))
+                    Some(IndexSet::from_iter(columns.clone()))
                 }
             }
             None => None,
@@ -208,11 +206,7 @@ pub fn init_app(
                                 widget.widget_id,
                                 CpuWidgetState::new(
                                     &app_config_fields,
-                                    config
-                                        .cpu
-                                        .as_ref()
-                                        .map(|cfg| cfg.default)
-                                        .unwrap_or_default(),
+                                    config.cpu.default,
                                     default_time_value,
                                     autohide_timer,
                                     styling,
diff --git a/src/options/config.rs b/src/options/config.rs
index d787c0ec..df767ad7 100644
--- a/src/options/config.rs
+++ b/src/options/config.rs
@@ -1,41 +1,55 @@
+pub mod battery;
 pub mod cpu;
-mod ignore_list;
+pub mod general;
+pub mod gpu;
 pub mod layout;
-pub mod process_columns;
+pub mod memory;
+pub mod network;
+pub mod process;
+mod style;
+pub mod temperature;
 
-use serde::{Deserialize, Serialize};
+use serde::Deserialize;
+pub use style::*;
 
-pub use self::ignore_list::IgnoreList;
-use self::{cpu::CpuConfig, layout::Row, process_columns::ProcessConfig};
+use self::{colours::ColourConfig, cpu::CpuConfig, layout::Row, process::ProcessConfig};
 
-use super::ConfigColours;
-
-// #[derive(Debug, Deserialize)]
-// pub struct NewConfig {
-//     pub(crate) disk_filter: Option<IgnoreList>,
-//     pub(crate) mount_filter: Option<IgnoreList>,
-//     pub(crate) temp_filter: Option<IgnoreList>,
-//     pub(crate) net_filter: Option<IgnoreList>,
-//     #[serde(default)]
-//     pub(crate) processes: ProcessConfig,
-//     #[serde(default)]
-//     pub(crate) cpu: CpuConfig,
-// }
-
-#[derive(Clone, Debug, Default, Deserialize)]
+#[derive(Debug, Default, Deserialize)]
 pub struct Config {
-    pub(crate) flags: Option<ConfigFlags>,
-    pub(crate) colors: Option<ConfigColours>,
+    // #[serde(default)]
+    // pub(crate) general_options: GeneralOptions,
+    // #[serde(default)]
+    // pub(crate) process_options: ProcessOptions,
+    // #[serde(default)]
+    // pub(crate) temperature_options: TemperatureOptions,
+    // #[serde(default)]
+    // pub(crate) cpu_options: CpuOptions,
+    // #[serde(default)]
+    // pub(crate) memory_options: MemoryOptions,
+    // #[serde(default)]
+    // pub(crate) network_options: NetworkOptions,
+    // #[serde(default)]
+    // pub(crate) battery_options: BatteryOptions,
+    // #[serde(default)]
+    // pub(crate) gpu_options: GpuOptions,
+    // #[serde(default)]
+    // pub(crate) style_options: StyleOptions,
+    pub flags: Option<ConfigFlags>,
+
+    // TODO: Merge these into above!
+    pub(crate) colors: Option<ColourConfig>,
     pub(crate) row: Option<Vec<Row>>,
     pub(crate) disk_filter: Option<IgnoreList>,
     pub(crate) mount_filter: Option<IgnoreList>,
     pub(crate) temp_filter: Option<IgnoreList>,
     pub(crate) net_filter: Option<IgnoreList>,
-    pub(crate) processes: Option<ProcessConfig>,
-    pub(crate) cpu: Option<CpuConfig>,
+    #[serde(default)]
+    pub(crate) processes: ProcessConfig,
+    #[serde(default)]
+    pub(crate) cpu: CpuConfig,
 }
 
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize)]
 #[serde(untagged)]
 pub(crate) enum StringOrNum {
     String(String),
@@ -54,8 +68,28 @@ impl From<u64> for StringOrNum {
     }
 }
 
-#[derive(Clone, Debug, Default, Deserialize, Serialize)]
-pub(crate) struct ConfigFlags {
+/// Workaround as per https://github.com/serde-rs/serde/issues/1030
+fn default_as_true() -> bool {
+    true
+}
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub struct IgnoreList {
+    #[serde(default = "default_as_true")]
+    // TODO: Deprecate and/or rename, current name sounds awful.
+    // Maybe to something like "deny_entries"?  Currently it defaults to a denylist anyways, so maybe "allow_entries"?
+    pub is_list_ignored: bool,
+    pub list: Vec<String>,
+    #[serde(default)]
+    pub regex: bool,
+    #[serde(default)]
+    pub case_sensitive: bool,
+    #[serde(default)]
+    pub whole_word: bool,
+}
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub struct ConfigFlags {
     pub(crate) hide_avg_cpu: Option<bool>,
     pub(crate) dot_marker: Option<bool>,
     pub(crate) temperature_type: Option<String>,
@@ -79,8 +113,6 @@ pub(crate) struct ConfigFlags {
     pub(crate) hide_table_gap: Option<bool>,
     pub(crate) battery: Option<bool>,
     pub(crate) disable_click: Option<bool>,
-    pub(crate) no_write: Option<bool>,
-    /// For built-in colour palettes.
     pub(crate) color: Option<String>,
     pub(crate) mem_as_value: Option<bool>,
     pub(crate) tree: Option<bool>,
diff --git a/src/options/config/battery.rs b/src/options/config/battery.rs
new file mode 100644
index 00000000..4f778cff
--- /dev/null
+++ b/src/options/config/battery.rs
@@ -0,0 +1,6 @@
+use serde::Deserialize;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct BatteryOptions {
+    pub(crate) battery: Option<bool>,
+}
diff --git a/src/options/config/cpu.rs b/src/options/config/cpu.rs
index ce027305..07be9632 100644
--- a/src/options/config/cpu.rs
+++ b/src/options/config/cpu.rs
@@ -11,10 +11,12 @@ pub enum CpuDefault {
 }
 
 /// Process column settings.
+
 #[derive(Clone, Debug, Default, Deserialize)]
-pub struct CpuConfig {
+pub(crate) struct CpuConfig {
+    pub(crate) hide_avg_cpu: Option<bool>,
     #[serde(default)]
-    pub default: CpuDefault,
+    pub(crate) default: CpuDefault,
 }
 
 #[cfg(test)]
diff --git a/src/options/config/general.rs b/src/options/config/general.rs
new file mode 100644
index 00000000..5d3da95a
--- /dev/null
+++ b/src/options/config/general.rs
@@ -0,0 +1,21 @@
+use serde::Deserialize;
+
+use super::StringOrNum;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct GeneralConfig {
+    pub(crate) autohide_time: Option<bool>,
+    pub(crate) basic: Option<bool>,
+    pub(crate) default_time_value: Option<StringOrNum>,
+    pub(crate) default_widget_type: Option<String>,
+    pub(crate) disable_click: Option<bool>,
+    pub(crate) dot_marker: Option<bool>, // TODO: Support other markers!
+    pub(crate) expanded: Option<bool>,
+    pub(crate) hide_table_gap: Option<bool>,
+    pub(crate) hide_time: Option<bool>, // TODO: Combine with autohide_time
+    pub(crate) left_legend: Option<bool>,
+    pub(crate) rate: Option<StringOrNum>,
+    pub(crate) retention: Option<StringOrNum>,
+    pub(crate) show_table_scroll_position: Option<bool>,
+    pub(crate) time_delta: Option<StringOrNum>,
+}
diff --git a/src/options/config/gpu.rs b/src/options/config/gpu.rs
new file mode 100644
index 00000000..50f9c50c
--- /dev/null
+++ b/src/options/config/gpu.rs
@@ -0,0 +1,6 @@
+use serde::Deserialize;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct GpuOptions {
+    pub(crate) enable_gpu: Option<bool>, // TODO: Enable by default instead?
+}
diff --git a/src/options/config/ignore_list.rs b/src/options/config/ignore_list.rs
deleted file mode 100644
index d70224c1..00000000
--- a/src/options/config/ignore_list.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-/// Workaround as per https://github.com/serde-rs/serde/issues/1030
-fn default_as_true() -> bool {
-    true
-}
-
-#[derive(Clone, Debug, Default, Deserialize, Serialize)]
-pub struct IgnoreList {
-    #[serde(default = "default_as_true")]
-    // TODO: Deprecate and/or rename, current name sounds awful.
-    // Maybe to something like "deny_entries"?  Currently it defaults to a denylist anyways, so maybe "allow_entries"?
-    pub is_list_ignored: bool,
-    pub list: Vec<String>,
-    #[serde(default)]
-    pub regex: bool,
-    #[serde(default)]
-    pub case_sensitive: bool,
-    #[serde(default)]
-    pub whole_word: bool,
-}
diff --git a/src/options/config/memory.rs b/src/options/config/memory.rs
new file mode 100644
index 00000000..4e180122
--- /dev/null
+++ b/src/options/config/memory.rs
@@ -0,0 +1,7 @@
+use serde::Deserialize;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct MemoryConfig {
+    pub(crate) mem_as_value: Option<bool>,
+    pub(crate) enable_cache_memory: Option<bool>,
+}
diff --git a/src/options/config/network.rs b/src/options/config/network.rs
new file mode 100644
index 00000000..48345469
--- /dev/null
+++ b/src/options/config/network.rs
@@ -0,0 +1,9 @@
+use serde::Deserialize;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct NetworkConfig {
+    pub(crate) network_use_bytes: Option<bool>,
+    pub(crate) network_use_log: Option<bool>,
+    pub(crate) network_use_binary_prefix: Option<bool>,
+    pub(crate) use_old_network_legend: Option<bool>,
+}
diff --git a/src/options/config/process_columns.rs b/src/options/config/process.rs
index ea65bf27..0e13f920 100644
--- a/src/options/config/process_columns.rs
+++ b/src/options/config/process.rs
@@ -4,9 +4,17 @@ use crate::widgets::ProcWidgetColumn;
 
 /// Process column settings.
 #[derive(Clone, Debug, Default, Deserialize)]
-pub struct ProcessConfig {
-    #[serde(default)]
-    pub columns: Vec<ProcWidgetColumn>,
+pub(crate) struct ProcessConfig {
+    pub(crate) case_sensitive: Option<bool>,
+    pub(crate) current_usage: Option<bool>,
+    pub(crate) disable_advanced_kill: Option<bool>,
+    pub(crate) group_processes: Option<bool>,
+    pub(crate) process_command: Option<bool>,
+    pub(crate) regex: Option<bool>,
+    pub(crate) tree: Option<bool>,
+    pub(crate) unnormalized_cpu: Option<bool>,
+    pub(crate) whole_word: Option<bool>,
+    pub(crate) columns: Option<Vec<ProcWidgetColumn>>,
 }
 
 #[cfg(test)]
@@ -18,7 +26,7 @@ mod test {
     fn empty_column_setting() {
         let config = "";
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
-        assert!(generated.columns.is_empty());
+        assert!(generated.columns.is_none());
     }
 
     #[test]
@@ -29,7 +37,7 @@ mod test {
 
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
         assert_eq!(
-            generated.columns,
+            generated.columns.unwrap(),
             vec![
                 ProcWidgetColumn::Cpu,
                 ProcWidgetColumn::PidOrCount,
@@ -56,18 +64,22 @@ mod test {
     fn process_column_settings_3() {
         let config = r#"columns = ["Twrite", "T.Write"]"#;
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
-        assert_eq!(generated.columns, vec![ProcWidgetColumn::TotalWrite; 2]);
+        let columns = generated.columns.unwrap();
+        assert_eq!(columns, vec![ProcWidgetColumn::TotalWrite; 2]);
 
         let config = r#"columns = ["Tread", "T.read"]"#;
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
-        assert_eq!(generated.columns, vec![ProcWidgetColumn::TotalRead; 2]);
+        let columns = generated.columns.unwrap();
+        assert_eq!(columns, vec![ProcWidgetColumn::TotalRead; 2]);
 
         let config = r#"columns = ["read", "rps", "r/s"]"#;
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
-        assert_eq!(generated.columns, vec![ProcWidgetColumn::ReadPerSecond; 3]);
+        let columns = generated.columns.unwrap();
+        assert_eq!(columns, vec![ProcWidgetColumn::ReadPerSecond; 3]);
 
         let config = r#"columns = ["write", "wps", "w/s"]"#;
         let generated: ProcessConfig = toml_edit::de::from_str(config).unwrap();
-        assert_eq!(generated.columns, vec![ProcWidgetColumn::WritePerSecond; 3]);
+        let columns = generated.columns.unwrap();
+        assert_eq!(columns, vec![ProcWidgetColumn::WritePerSecond; 3]);
     }
 }
diff --git a/src/options/config/style.rs b/src/options/config/style.rs
new file mode 100644
index 00000000..e0c10d8a
--- /dev/null
+++ b/src/options/config/style.rs
@@ -0,0 +1,9 @@
+pub mod colours;
+pub mod palettes;
+
+use serde::Deserialize;
+
+#[derive(Clone, Debug, Default, Deserialize)]
+pub(crate) struct StyleConfig {
+    pub(crate) color: Option<String>,
+}
diff --git a/src/options/colours.rs b/src/options/config/style/colours.rs
index edef00b4..7068bfdb 100644
--- a/src/options/colours.rs
+++ b/src/options/config/style/colours.rs
@@ -3,7 +3,7 @@ use std::borrow::Cow;
 use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, Default, Deserialize, Serialize)]
-pub struct ConfigColours {
+pub struct ColourConfig {
     pub table_header_color: Option<Cow<'static, str>>,
     pub all_cpu_color: Option<Cow<'static, str>>,
     pub avg_cpu_color: Option<Cow<'static, str>>,
@@ -31,7 +31,7 @@ pub struct ConfigColours {
     pub low_battery_color: Option<Cow<'static, str>>,
 }
 
-impl ConfigColours {
+impl ColourConfig {
     /// Returns `true` if there is a [`ConfigColours`] that is empty or there isn't one at all.
     pub fn is_empty(&self) -> bool {
         if let Ok(serialized_string) = toml_edit::ser::to_string(self) {
diff --git a/src/options/config/style/palettes.rs b/src/options/config/style/palettes.rs
new file mode 100644
index 00000000..2c913f94
--- /dev/null
+++ b/src/options/config/style/palettes.rs
@@ -0,0 +1,255 @@
+use super::colours::ColourConfig;
+
+// Colour profiles
+// TODO: Generate these with a macro or something...
+pub fn default_light_mode_colour_palette() -> ColourConfig {
+    ColourConfig {
+        text_color: Some("black".into()),
+        border_color: Some("black".into()),
+        table_header_color: Some("black".into()),
+        widget_title_color: Some("black".into()),
+        selected_text_color: Some("white".into()),
+        graph_color: Some("black".into()),
+        disabled_text_color: Some("gray".into()),
+        ram_color: Some("blue".into()),
+        #[cfg(not(target_os = "windows"))]
+        cache_color: Some("LightRed".into()),
+        swap_color: Some("red".into()),
+        arc_color: Some("LightBlue".into()),
+        gpu_core_colors: Some(vec![
+            "LightGreen".into(),
+            "LightCyan".into(),
+            "LightRed".into(),
+            "Cyan".into(),
+            "Green".into(),
+            "Blue".into(),
+            "Red".into(),
+        ]),
+        rx_color: Some("blue".into()),
+        tx_color: Some("red".into()),
+        rx_total_color: Some("LightBlue".into()),
+        tx_total_color: Some("LightRed".into()),
+        cpu_core_colors: Some(vec![
+            "LightMagenta".into(),
+            "LightBlue".into(),
+            "LightRed".into(),
+            "Cyan".into(),
+            "Green".into(),
+            "Blue".into(),
+            "Red".into(),
+        ]),
+        ..ColourConfig::default()
+    }
+}
+
+pub fn gruvbox_colour_palette() -> ColourConfig {
+    ColourConfig {
+        table_header_color: Some("#83a598".into()),
+        all_cpu_color: Some("#8ec07c".into()),
+        avg_cpu_color: Some("#fb4934".into()),
+        cpu_core_colors: Some(vec![
+            "#cc241d".into(),
+            "#98971a".into(),
+            "#d79921".into(),
+            "#458588".into(),
+            "#b16286".into(),
+            "#689d6a".into(),
+            "#fe8019".into(),
+            "#b8bb26".into(),
+            "#fabd2f".into(),
+            "#83a598".into(),
+            "#d3869b".into(),
+            "#d65d0e".into(),
+            "#9d0006".into(),
+            "#79740e".into(),
+            "#b57614".into(),
+            "#076678".into(),
+            "#8f3f71".into(),
+            "#427b58".into(),
+            "#d65d03".into(),
+            "#af3a03".into(),
+        ]),
+        ram_color: Some("#8ec07c".into()),
+        #[cfg(not(target_os = "windows"))]
+        cache_color: Some("#b16286".into()),
+        swap_color: Some("#fabd2f".into()),
+        arc_color: Some("#689d6a".into()),
+        gpu_core_colors: Some(vec![
+            "#d79921".into(),
+            "#458588".into(),
+            "#b16286".into(),
+            "#fe8019".into(),
+            "#b8bb26".into(),
+            "#cc241d".into(),
+            "#98971a".into(),
+        ]),
+        rx_color: Some("#8ec07c".into()),
+        tx_color: Some("#fabd2f".into()),
+        rx_total_color: Some("#689d6a".into()),
+        tx_total_color: Some("#d79921".into()),
+        border_color: Some("#ebdbb2".into()),
+        highlighted_border_color: Some("#fe8019".into()),
+        disabled_text_color: Some("#665c54".into()),
+        text_color: Some("#ebdbb2".into()),
+        selected_text_color: Some("#1d2021".into()),
+        selected_bg_color: Some("#ebdbb2".into()),
+        widget_title_color: Some("#ebdbb2".into()),
+        graph_color: Some("#ebdbb2".into()),
+        high_battery_color: Some("#98971a".into()),
+        medium_battery_color: Some("#fabd2f".into()),
+        low_battery_color: Some("#fb4934".into()),
+    }
+}
+
+pub fn gruvbox_light_colour_palette() -> ColourConfig {
+    ColourConfig {
+        table_header_color: Some("#076678".into()),
+        all_cpu_color: Some("#8ec07c".into()),
+        avg_cpu_color: Some("#fb4934".into()),
+        cpu_core_colors: Some(vec![
+            "#cc241d".into(),
+            "#98971a".into(),
+            "#d79921".into(),
+            "#458588".into(),
+            "#b16286".into(),
+            "#689d6a".into(),
+            "#fe8019".into(),
+            "#b8bb26".into(),
+            "#fabd2f".into(),
+            "#83a598".into(),
+            "#d3869b".into(),
+            "#d65d0e".into(),
+            "#9d0006".into(),
+            "#79740e".into(),
+            "#b57614".into(),
+            "#076678".into(),
+            "#8f3f71".into(),
+            "#427b58".into(),
+            "#d65d03".into(),
+            "#af3a03".into(),
+        ]),
+        ram_color: Some("#427b58".into()),
+        #[cfg(not(target_os = "windows"))]
+        cache_color: Some("#d79921".into()),
+        swap_color: Some("#cc241d".into()),
+        arc_color: Some("#689d6a".into()),
+        gpu_core_colors: Some(vec![
+            "#9d0006".into(),</