diff --git a/src/btop_draw.cpp b/src/btop_draw.cpp
index 3465fa0..c18f2c6 100644
--- a/src/btop_draw.cpp
+++ b/src/btop_draw.cpp
@@ -1388,11 +1388,11 @@ namespace Proc {
 					for (int i = 0; int v : {(int)round(p.cpu_p), (int)round(p.mem * 100 / Shared::totalMem), (int)p.threads / 3}) {
 						if (proc_gradient) {
 							int val = (min(v, 100) + 100) - calc * 100 / select_max;
-							if (val < 100) colors[i++] = Theme::g("proc_color").at(val);
-							else colors[i++] = Theme::g("process").at(val - 100);
+							if (val < 100) colors[i++] = Theme::g("proc_color").at(max(0, val));
+							else colors[i++] = Theme::g("process").at(clamp(val - 100, 0, 100));
 						}
 						else
-							colors[i++] = Theme::g("process").at(min(v, 100));
+							colors[i++] = Theme::g("process").at(clamp(v, 0, 100));
 					}
 					c_color = colors.at(0); m_color = colors.at(1); t_color = colors.at(2);
 				}
@@ -1401,7 +1401,7 @@ namespace Proc {
 					end = Fx::ub;
 				}
 				if (proc_gradient) {
-					g_color = Theme::g("proc").at(calc * 100 / select_max);
+					g_color = Theme::g("proc").at(clamp(calc * 100 / select_max, 0, 100));
 				}
 			}
 
@@ -1433,9 +1433,10 @@ namespace Proc {
 			if (p.cpu_p < 10 or p.cpu_p >= 100) cpu_str.resize(3);
 			string mem_str = (mem_bytes ? floating_humanizer(p.mem, true) : "");
 			if (not mem_bytes) {
-				double mem_p = (double)p.mem * 100 / Shared::totalMem;
+				double mem_p = clamp((double)p.mem * 100 / Shared::totalMem, 0.0, 100.0);
 				mem_str = to_string(mem_p);
-				mem_str.resize((mem_p < 10 or mem_p >= 100 ? 3 : 4));
+				if (mem_str.size() < 4)	mem_str = "0";
+				else mem_str.resize((mem_p < 10 or mem_p >= 100 ? 3 : 4));
 				mem_str += '%';
 			}
 			out += (thread_size > 0 ? t_color + rjust(to_string(min(p.threads, (size_t)9999)), thread_size) + ' ' + end : "" )
diff --git a/src/btop_theme.cpp b/src/btop_theme.cpp
index a912eb2..116e78b 100644
--- a/src/btop_theme.cpp
+++ b/src/btop_theme.cpp
@@ -159,7 +159,7 @@ namespace Theme {
 			string pre = Fx::e + (depth == "fg" ? "38" : "48") + ";" + (t_to_256 ? "5;" : "2;");
 
 			if (hexa.size() == 2) {
-				int h_int = stoi(hexa, 0, 16);
+				int h_int = stoi(hexa, nullptr, 16);
 				if (t_to_256) {
 					return pre + to_string(truecolor_to_256(h_int, h_int, h_int)) + "m";
 				} else {
@@ -170,14 +170,14 @@ namespace Theme {
 			else if (hexa.size() == 6) {
 				if (t_to_256) {
 					return pre + to_string(truecolor_to_256(
-						stoi(hexa.substr(0, 2), 0, 16),
-						stoi(hexa.substr(2, 2), 0, 16),
-						stoi(hexa.substr(4, 2), 0, 16))) + "m";
+						stoi(hexa.substr(0, 2), nullptr, 16),
+						stoi(hexa.substr(2, 2), nullptr, 16),
+						stoi(hexa.substr(4, 2), nullptr, 16))) + "m";
 				} else {
 					return pre +
-						to_string(stoi(hexa.substr(0, 2), 0, 16)) + ";" +
-						to_string(stoi(hexa.substr(2, 2), 0, 16)) + ";" +
-						to_string(stoi(hexa.substr(4, 2), 0, 16)) + "m";
+						to_string(stoi(hexa.substr(0, 2), nullptr, 16)) + ";" +
+						to_string(stoi(hexa.substr(2, 2), nullptr, 16)) + ";" +
+						to_string(stoi(hexa.substr(4, 2), nullptr, 16)) + "m";
 				}
 			}
 			else Logger::error("Invalid size of hex value: " + hexa);
@@ -203,14 +203,14 @@ namespace Theme {
 				for (auto& c : hexa) if (not isxdigit(c)) return array<int, 3>{-1, -1, -1};
 
 				if (hexa.size() == 2) {
-					int h_int = stoi(hexa, 0, 16);
+					int h_int = stoi(hexa, nullptr, 16);
 					return array<int, 3>{h_int, h_int, h_int};
 				}
 				else if (hexa.size() == 6) {
 						return array<int, 3>{
-							stoi(hexa.substr(0, 2), 0, 16),
-							stoi(hexa.substr(2, 2), 0, 16),
-							stoi(hexa.substr(4, 2), 0, 16)
+							stoi(hexa.substr(0, 2), nullptr, 16),
+							stoi(hexa.substr(2, 2), nullptr, 16),
+							stoi(hexa.substr(4, 2), nullptr, 16)
 						};
 				}
 			}
@@ -434,4 +434,4 @@ namespace Theme {
 		Fx::reset = Fx::reset_base + Term::fg + Term::bg;
 	}
 
-}
\ No newline at end of file
+}
diff --git a/src/linux/btop_collect.cpp b/src/linux/btop_collect.cpp
index 5eb056e..bb0c944 100644
--- a/src/linux/btop_collect.cpp
+++ b/src/linux/btop_collect.cpp
@@ -1465,7 +1465,7 @@ namespace Proc {
 				if (x-offset < 24) continue;
 
 				//? Process cpu usage since last update
-				new_proc.cpu_p = round(cmult * 1000 * (cpu_t - new_proc.cpu_t) / max((uint64_t)1, cputimes - old_cputimes)) / 10.0;
+				new_proc.cpu_p = clamp(round(cmult * 1000 * (cpu_t - new_proc.cpu_t) / max((uint64_t)1, cputimes - old_cputimes)) / 10.0, 0.0, 100.0 * Shared::coreCount);
 
 				//? Process cumulative cpu usage since process start
 				new_proc.cpu_c = (double)cpu_t / max(1.0, (uptime * Shared::clkTck) - new_proc.cpu_s);